./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/psyco/psyco_abp_1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:03:13,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:03:13,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:03:13,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:03:13,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:03:13,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:03:13,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:03:13,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:03:13,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:03:13,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:03:13,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:03:13,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:03:13,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:03:13,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:03:13,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:03:13,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:03:13,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:03:13,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:03:13,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:03:13,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:03:13,230 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:03:13,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:03:13,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:03:13,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:03:13,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:03:13,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:03:13,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:03:13,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:03:13,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:03:13,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:03:13,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:03:13,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:03:13,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:03:13,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:03:13,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:03:13,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:03:13,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:03:13,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:03:13,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:03:13,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:03:13,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:03:13,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:03:13,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:03:13,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:03:13,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:03:13,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:03:13,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:03:13,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:03:13,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:03:13,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:03:13,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:03:13,281 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:03:13,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:03:13,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:03:13,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:03:13,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:03:13,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:03:13,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:03:13,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:03:13,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:03:13,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:03:13,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:03:13,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:03:13,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:03:13,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:03:13,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:03:13,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:03:13,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:03:13,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:03:13,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:03:13,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:03:13,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:03:13,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:03:13,286 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:03:13,286 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:03:13,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:03:13,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef [2022-07-19 13:03:13,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:03:13,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:03:13,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:03:13,519 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:03:13,520 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:03:13,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2022-07-19 13:03:13,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c04c688b/cf3a1c3df6404e9e9b94077f89f18416/FLAG5e00c32aa [2022-07-19 13:03:13,990 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:03:13,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2022-07-19 13:03:14,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c04c688b/cf3a1c3df6404e9e9b94077f89f18416/FLAG5e00c32aa [2022-07-19 13:03:14,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c04c688b/cf3a1c3df6404e9e9b94077f89f18416 [2022-07-19 13:03:14,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:03:14,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:03:14,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:03:14,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:03:14,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:03:14,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275f76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14, skipping insertion in model container [2022-07-19 13:03:14,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:03:14,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:03:14,549 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/psyco/psyco_abp_1-1.c[24818,24831] [2022-07-19 13:03:14,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:03:14,560 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:03:14,634 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/psyco/psyco_abp_1-1.c[24818,24831] [2022-07-19 13:03:14,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:03:14,657 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:03:14,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14 WrapperNode [2022-07-19 13:03:14,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:03:14,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:03:14,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:03:14,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:03:14,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,703 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 417 [2022-07-19 13:03:14,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:03:14,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:03:14,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:03:14,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:03:14,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:03:14,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:03:14,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:03:14,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:03:14,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (1/1) ... [2022-07-19 13:03:14,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:03:14,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:14,825 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 13:03:14,872 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 13:03:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:03:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:03:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:03:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:03:14,959 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:03:14,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:03:15,496 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:03:15,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:03:15,510 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 13:03:15,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:03:15 BoogieIcfgContainer [2022-07-19 13:03:15,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:03:15,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:03:15,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:03:15,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:03:15,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:03:14" (1/3) ... [2022-07-19 13:03:15,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636dfe7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:03:15, skipping insertion in model container [2022-07-19 13:03:15,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:03:14" (2/3) ... [2022-07-19 13:03:15,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636dfe7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:03:15, skipping insertion in model container [2022-07-19 13:03:15,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:03:15" (3/3) ... [2022-07-19 13:03:15,518 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-1.c [2022-07-19 13:03:15,529 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:03:15,529 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:03:15,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:03:15,590 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@26826293, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@103c0e31 [2022-07-19 13:03:15,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:03:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 1.9537037037037037) internal successors, (211), 109 states have internal predecessors, (211), 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 13:03:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-19 13:03:15,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:15,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:15,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1895078531, now seen corresponding path program 1 times [2022-07-19 13:03:15,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:15,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287805651] [2022-07-19 13:03:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:15,755 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 13:03:15,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:15,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287805651] [2022-07-19 13:03:15,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287805651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:15,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:15,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:03:15,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009716188] [2022-07-19 13:03:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:15,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:03:15,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:15,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:03:15,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:03:15,796 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 1.9537037037037037) internal successors, (211), 109 states have internal predecessors, (211), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 13:03:15,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:15,827 INFO L93 Difference]: Finished difference Result 218 states and 420 transitions. [2022-07-19 13:03:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:03:15,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-19 13:03:15,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:15,838 INFO L225 Difference]: With dead ends: 218 [2022-07-19 13:03:15,838 INFO L226 Difference]: Without dead ends: 106 [2022-07-19 13:03:15,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:03:15,844 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:15,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:15,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-19 13:03:15,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-07-19 13:03:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.6857142857142857) internal successors, (177), 105 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 13:03:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 177 transitions. [2022-07-19 13:03:15,882 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 177 transitions. Word has length 10 [2022-07-19 13:03:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:15,882 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 177 transitions. [2022-07-19 13:03:15,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 13:03:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 177 transitions. [2022-07-19 13:03:15,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 13:03:15,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:15,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:15,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:03:15,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:15,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:15,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1914595175, now seen corresponding path program 1 times [2022-07-19 13:03:15,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:15,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820487170] [2022-07-19 13:03:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:15,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:15,947 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 13:03:15,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:15,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820487170] [2022-07-19 13:03:15,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820487170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:15,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:15,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:03:15,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801069235] [2022-07-19 13:03:15,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:15,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:03:15,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:15,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:03:15,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:03:15,952 INFO L87 Difference]: Start difference. First operand 106 states and 177 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 13:03:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:16,019 INFO L93 Difference]: Finished difference Result 214 states and 358 transitions. [2022-07-19 13:03:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:03:16,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-07-19 13:03:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:16,021 INFO L225 Difference]: With dead ends: 214 [2022-07-19 13:03:16,021 INFO L226 Difference]: Without dead ends: 110 [2022-07-19 13:03:16,021 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 13:03:16,022 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 5 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:16,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 332 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-07-19 13:03:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-07-19 13:03:16,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.6697247706422018) internal successors, (182), 109 states have internal predecessors, (182), 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 13:03:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 182 transitions. [2022-07-19 13:03:16,031 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 182 transitions. Word has length 11 [2022-07-19 13:03:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:16,032 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 182 transitions. [2022-07-19 13:03:16,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 13:03:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 182 transitions. [2022-07-19 13:03:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 13:03:16,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:16,034 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:16,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:03:16,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash 100490260, now seen corresponding path program 1 times [2022-07-19 13:03:16,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:16,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688756328] [2022-07-19 13:03:16,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:16,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:16,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:16,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688756328] [2022-07-19 13:03:16,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688756328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:16,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:16,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 13:03:16,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859891780] [2022-07-19 13:03:16,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:16,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 13:03:16,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:16,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 13:03:16,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:03:16,245 INFO L87 Difference]: Start difference. First operand 110 states and 182 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 13:03:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:16,440 INFO L93 Difference]: Finished difference Result 326 states and 541 transitions. [2022-07-19 13:03:16,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 13:03:16,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-07-19 13:03:16,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:16,441 INFO L225 Difference]: With dead ends: 326 [2022-07-19 13:03:16,441 INFO L226 Difference]: Without dead ends: 197 [2022-07-19 13:03:16,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:03:16,443 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 148 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:16,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 389 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 13:03:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-07-19 13:03:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 184. [2022-07-19 13:03:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.644808743169399) internal successors, (301), 183 states have internal predecessors, (301), 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 13:03:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 301 transitions. [2022-07-19 13:03:16,451 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 301 transitions. Word has length 17 [2022-07-19 13:03:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:16,451 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 301 transitions. [2022-07-19 13:03:16,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 13:03:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 301 transitions. [2022-07-19 13:03:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 13:03:16,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:16,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:16,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 13:03:16,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:16,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:16,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1571478032, now seen corresponding path program 1 times [2022-07-19 13:03:16,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:16,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117185858] [2022-07-19 13:03:16,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:16,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:16,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:16,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117185858] [2022-07-19 13:03:16,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117185858] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:16,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:16,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:03:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145103007] [2022-07-19 13:03:16,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:16,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:03:16,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:03:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:03:16,474 INFO L87 Difference]: Start difference. First operand 184 states and 301 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 13:03:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:16,493 INFO L93 Difference]: Finished difference Result 314 states and 514 transitions. [2022-07-19 13:03:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:03:16,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-07-19 13:03:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:16,495 INFO L225 Difference]: With dead ends: 314 [2022-07-19 13:03:16,495 INFO L226 Difference]: Without dead ends: 133 [2022-07-19 13:03:16,495 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 13:03:16,496 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 33 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:16,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 307 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:16,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-07-19 13:03:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2022-07-19 13:03:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.623076923076923) internal successors, (211), 130 states have internal predecessors, (211), 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 13:03:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 211 transitions. [2022-07-19 13:03:16,503 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 211 transitions. Word has length 18 [2022-07-19 13:03:16,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:16,503 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 211 transitions. [2022-07-19 13:03:16,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 13:03:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 211 transitions. [2022-07-19 13:03:16,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 13:03:16,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:16,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:16,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 13:03:16,504 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:16,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1260642915, now seen corresponding path program 1 times [2022-07-19 13:03:16,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:16,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28578558] [2022-07-19 13:03:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:16,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 13:03:16,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:16,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28578558] [2022-07-19 13:03:16,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28578558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:16,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:16,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:03:16,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212678431] [2022-07-19 13:03:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:16,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:03:16,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:16,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:03:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:03:16,539 INFO L87 Difference]: Start difference. First operand 131 states and 211 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 13:03:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:16,560 INFO L93 Difference]: Finished difference Result 267 states and 431 transitions. [2022-07-19 13:03:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:03:16,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 24 [2022-07-19 13:03:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:16,562 INFO L225 Difference]: With dead ends: 267 [2022-07-19 13:03:16,562 INFO L226 Difference]: Without dead ends: 139 [2022-07-19 13:03:16,563 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 13:03:16,564 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 35 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:16,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 306 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:16,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-07-19 13:03:16,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2022-07-19 13:03:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.6029411764705883) internal successors, (218), 136 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 13:03:16,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 218 transitions. [2022-07-19 13:03:16,570 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 218 transitions. Word has length 24 [2022-07-19 13:03:16,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:16,570 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 218 transitions. [2022-07-19 13:03:16,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 13:03:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 218 transitions. [2022-07-19 13:03:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-19 13:03:16,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:16,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:16,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 13:03:16,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1813922334, now seen corresponding path program 1 times [2022-07-19 13:03:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:16,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681341131] [2022-07-19 13:03:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:16,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:16,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681341131] [2022-07-19 13:03:16,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681341131] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:16,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10880218] [2022-07-19 13:03:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:16,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:16,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:16,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:16,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 13:03:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:16,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 13:03:16,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:16,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:16,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10880218] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:16,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:16,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-07-19 13:03:16,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530221896] [2022-07-19 13:03:16,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:16,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 13:03:16,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:16,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 13:03:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 13:03:16,786 INFO L87 Difference]: Start difference. First operand 137 states and 218 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 13:03:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:16,894 INFO L93 Difference]: Finished difference Result 258 states and 411 transitions. [2022-07-19 13:03:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 13:03:16,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 26 [2022-07-19 13:03:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:16,896 INFO L225 Difference]: With dead ends: 258 [2022-07-19 13:03:16,896 INFO L226 Difference]: Without dead ends: 243 [2022-07-19 13:03:16,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 13:03:16,897 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 348 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:16,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 708 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-07-19 13:03:16,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 220. [2022-07-19 13:03:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.6484018264840183) internal successors, (361), 219 states have internal predecessors, (361), 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 13:03:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 361 transitions. [2022-07-19 13:03:16,904 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 361 transitions. Word has length 26 [2022-07-19 13:03:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:16,905 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 361 transitions. [2022-07-19 13:03:16,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 13:03:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 361 transitions. [2022-07-19 13:03:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-19 13:03:16,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:16,906 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:16,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:17,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-19 13:03:17,123 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:17,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash 408461028, now seen corresponding path program 1 times [2022-07-19 13:03:17,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:17,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134638121] [2022-07-19 13:03:17,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:17,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:17,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134638121] [2022-07-19 13:03:17,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134638121] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:17,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098635709] [2022-07-19 13:03:17,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:17,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:17,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:17,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:17,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 13:03:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:17,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 13:03:17,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:17,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:17,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098635709] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:17,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:17,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-07-19 13:03:17,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232589503] [2022-07-19 13:03:17,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:17,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 13:03:17,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:17,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 13:03:17,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-19 13:03:17,517 INFO L87 Difference]: Start difference. First operand 220 states and 361 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 13:03:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:17,640 INFO L93 Difference]: Finished difference Result 462 states and 753 transitions. [2022-07-19 13:03:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 13:03:17,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 27 [2022-07-19 13:03:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:17,641 INFO L225 Difference]: With dead ends: 462 [2022-07-19 13:03:17,641 INFO L226 Difference]: Without dead ends: 243 [2022-07-19 13:03:17,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-19 13:03:17,642 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 54 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:17,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 886 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:17,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-07-19 13:03:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 239. [2022-07-19 13:03:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 1.6260504201680672) internal successors, (387), 238 states have internal predecessors, (387), 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 13:03:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 387 transitions. [2022-07-19 13:03:17,649 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 387 transitions. Word has length 27 [2022-07-19 13:03:17,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:17,649 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 387 transitions. [2022-07-19 13:03:17,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 13:03:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 387 transitions. [2022-07-19 13:03:17,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 13:03:17,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:17,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:17,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-19 13:03:17,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-19 13:03:17,884 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash -895020851, now seen corresponding path program 1 times [2022-07-19 13:03:17,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:17,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609882007] [2022-07-19 13:03:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:17,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 13:03:17,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:17,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609882007] [2022-07-19 13:03:17,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609882007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:17,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:03:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491558040] [2022-07-19 13:03:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:17,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:03:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:03:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:03:17,911 INFO L87 Difference]: Start difference. First operand 239 states and 387 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 13:03:17,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:17,930 INFO L93 Difference]: Finished difference Result 447 states and 721 transitions. [2022-07-19 13:03:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:03:17,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 34 [2022-07-19 13:03:17,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:17,932 INFO L225 Difference]: With dead ends: 447 [2022-07-19 13:03:17,932 INFO L226 Difference]: Without dead ends: 211 [2022-07-19 13:03:17,932 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 13:03:17,933 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 70 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:17,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 214 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:17,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-07-19 13:03:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2022-07-19 13:03:17,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.5769230769230769) internal successors, (328), 208 states have internal predecessors, (328), 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 13:03:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 328 transitions. [2022-07-19 13:03:17,938 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 328 transitions. Word has length 34 [2022-07-19 13:03:17,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:17,938 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 328 transitions. [2022-07-19 13:03:17,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 13:03:17,938 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 328 transitions. [2022-07-19 13:03:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 13:03:17,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:17,939 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 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 13:03:17,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 13:03:17,939 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:17,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash -936850633, now seen corresponding path program 1 times [2022-07-19 13:03:17,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:17,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623567914] [2022-07-19 13:03:17,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:17,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:18,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:18,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623567914] [2022-07-19 13:03:18,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623567914] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:18,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073541027] [2022-07-19 13:03:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:18,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:18,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:18,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:18,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 13:03:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:18,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 13:03:18,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:18,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:18,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073541027] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:18,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:18,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-07-19 13:03:18,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781055662] [2022-07-19 13:03:18,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:18,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 13:03:18,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:18,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 13:03:18,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:03:18,337 INFO L87 Difference]: Start difference. First operand 209 states and 328 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 13:03:18,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:18,720 INFO L93 Difference]: Finished difference Result 673 states and 1050 transitions. [2022-07-19 13:03:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 13:03:18,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 37 [2022-07-19 13:03:18,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:18,722 INFO L225 Difference]: With dead ends: 673 [2022-07-19 13:03:18,722 INFO L226 Difference]: Without dead ends: 438 [2022-07-19 13:03:18,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-19 13:03:18,723 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 523 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:18,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 851 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 13:03:18,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-07-19 13:03:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 400. [2022-07-19 13:03:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.5488721804511278) internal successors, (618), 399 states have internal predecessors, (618), 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 13:03:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 618 transitions. [2022-07-19 13:03:18,735 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 618 transitions. Word has length 37 [2022-07-19 13:03:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:18,735 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 618 transitions. [2022-07-19 13:03:18,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 13:03:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 618 transitions. [2022-07-19 13:03:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 13:03:18,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:18,738 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2022-07-19 13:03:18,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:18,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:18,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:18,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1033847947, now seen corresponding path program 1 times [2022-07-19 13:03:18,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:18,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058716662] [2022-07-19 13:03:18,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 13:03:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058716662] [2022-07-19 13:03:19,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058716662] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599365683] [2022-07-19 13:03:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:19,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:19,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:19,052 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:19,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 13:03:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:19,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 13:03:19,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 13:03:19,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 13:03:19,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599365683] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:19,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:19,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-07-19 13:03:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215198608] [2022-07-19 13:03:19,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:19,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 13:03:19,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 13:03:19,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:03:19,236 INFO L87 Difference]: Start difference. First operand 400 states and 618 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 13:03:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:19,289 INFO L93 Difference]: Finished difference Result 415 states and 631 transitions. [2022-07-19 13:03:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 13:03:19,289 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 38 [2022-07-19 13:03:19,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:19,291 INFO L225 Difference]: With dead ends: 415 [2022-07-19 13:03:19,291 INFO L226 Difference]: Without dead ends: 403 [2022-07-19 13:03:19,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 7 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:03:19,292 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 222 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:19,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 437 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:19,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-07-19 13:03:19,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 400. [2022-07-19 13:03:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.518796992481203) internal successors, (606), 399 states have internal predecessors, (606), 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 13:03:19,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 606 transitions. [2022-07-19 13:03:19,300 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 606 transitions. Word has length 38 [2022-07-19 13:03:19,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:19,300 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 606 transitions. [2022-07-19 13:03:19,300 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 13:03:19,300 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 606 transitions. [2022-07-19 13:03:19,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-19 13:03:19,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:19,301 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2022-07-19 13:03:19,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:19,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:19,518 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:19,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1756734972, now seen corresponding path program 1 times [2022-07-19 13:03:19,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:19,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538874178] [2022-07-19 13:03:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:19,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:19,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538874178] [2022-07-19 13:03:19,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538874178] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:19,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728019427] [2022-07-19 13:03:19,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:19,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:19,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:19,690 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:19,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 13:03:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:19,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-19 13:03:19,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:19,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:20,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728019427] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:20,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:20,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-07-19 13:03:20,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925343226] [2022-07-19 13:03:20,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:20,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 13:03:20,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 13:03:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:03:20,183 INFO L87 Difference]: Start difference. First operand 400 states and 606 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:03:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:20,324 INFO L93 Difference]: Finished difference Result 412 states and 615 transitions. [2022-07-19 13:03:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 13:03:20,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 40 [2022-07-19 13:03:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:20,326 INFO L225 Difference]: With dead ends: 412 [2022-07-19 13:03:20,326 INFO L226 Difference]: Without dead ends: 410 [2022-07-19 13:03:20,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:03:20,327 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 199 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:20,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 659 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-19 13:03:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 401. [2022-07-19 13:03:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.5175) internal successors, (607), 400 states have internal predecessors, (607), 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 13:03:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 607 transitions. [2022-07-19 13:03:20,343 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 607 transitions. Word has length 40 [2022-07-19 13:03:20,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:20,343 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 607 transitions. [2022-07-19 13:03:20,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 13:03:20,343 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 607 transitions. [2022-07-19 13:03:20,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 13:03:20,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:20,344 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 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] [2022-07-19 13:03:20,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:20,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-19 13:03:20,568 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:20,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1250552987, now seen corresponding path program 1 times [2022-07-19 13:03:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:20,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941648663] [2022-07-19 13:03:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 13:03:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:20,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941648663] [2022-07-19 13:03:20,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941648663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:20,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:20,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:03:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146381046] [2022-07-19 13:03:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:20,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:03:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:20,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:03:20,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:03:20,610 INFO L87 Difference]: Start difference. First operand 401 states and 607 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 13:03:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:20,644 INFO L93 Difference]: Finished difference Result 756 states and 1142 transitions. [2022-07-19 13:03:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:03:20,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 41 [2022-07-19 13:03:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:20,646 INFO L225 Difference]: With dead ends: 756 [2022-07-19 13:03:20,646 INFO L226 Difference]: Without dead ends: 400 [2022-07-19 13:03:20,647 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 13:03:20,647 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 33 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:20,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 246 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:20,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-07-19 13:03:20,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 398. [2022-07-19 13:03:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 1.4836272040302267) internal successors, (589), 397 states have internal predecessors, (589), 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 13:03:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 589 transitions. [2022-07-19 13:03:20,669 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 589 transitions. Word has length 41 [2022-07-19 13:03:20,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:20,669 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 589 transitions. [2022-07-19 13:03:20,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 13:03:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 589 transitions. [2022-07-19 13:03:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-19 13:03:20,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:20,670 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 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] [2022-07-19 13:03:20,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 13:03:20,671 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:20,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:20,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1798904348, now seen corresponding path program 1 times [2022-07-19 13:03:20,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:20,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066457050] [2022-07-19 13:03:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:20,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 13:03:20,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:20,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066457050] [2022-07-19 13:03:20,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066457050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:20,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:03:20,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:03:20,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855556438] [2022-07-19 13:03:20,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:20,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:03:20,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:20,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:03:20,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:03:20,723 INFO L87 Difference]: Start difference. First operand 398 states and 589 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 13:03:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:20,749 INFO L93 Difference]: Finished difference Result 566 states and 838 transitions. [2022-07-19 13:03:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:03:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 53 [2022-07-19 13:03:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:20,750 INFO L225 Difference]: With dead ends: 566 [2022-07-19 13:03:20,750 INFO L226 Difference]: Without dead ends: 233 [2022-07-19 13:03:20,751 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 13:03:20,751 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 30 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:20,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 203 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-19 13:03:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2022-07-19 13:03:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.4478260869565218) internal successors, (333), 230 states have internal predecessors, (333), 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 13:03:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 333 transitions. [2022-07-19 13:03:20,763 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 333 transitions. Word has length 53 [2022-07-19 13:03:20,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:20,763 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 333 transitions. [2022-07-19 13:03:20,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 13:03:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 333 transitions. [2022-07-19 13:03:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 13:03:20,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:20,764 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 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] [2022-07-19 13:03:20,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 13:03:20,764 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1723595032, now seen corresponding path program 1 times [2022-07-19 13:03:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:20,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541439497] [2022-07-19 13:03:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:20,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:20,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541439497] [2022-07-19 13:03:20,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541439497] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:20,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809425937] [2022-07-19 13:03:20,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:20,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:20,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:20,846 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:20,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 13:03:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:20,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 13:03:20,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:20,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:03:20,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809425937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:03:20,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 13:03:20,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-07-19 13:03:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925842433] [2022-07-19 13:03:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:03:20,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 13:03:20,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 13:03:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 13:03:20,991 INFO L87 Difference]: Start difference. First operand 231 states and 333 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 13:03:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:21,035 INFO L93 Difference]: Finished difference Result 317 states and 455 transitions. [2022-07-19 13:03:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 13:03:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 13:03:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:21,037 INFO L225 Difference]: With dead ends: 317 [2022-07-19 13:03:21,037 INFO L226 Difference]: Without dead ends: 313 [2022-07-19 13:03:21,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 13:03:21,038 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 198 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:21,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 427 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:03:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-07-19 13:03:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 309. [2022-07-19 13:03:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.4545454545454546) internal successors, (448), 308 states have internal predecessors, (448), 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 13:03:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 448 transitions. [2022-07-19 13:03:21,044 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 448 transitions. Word has length 55 [2022-07-19 13:03:21,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:21,044 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 448 transitions. [2022-07-19 13:03:21,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 13:03:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 448 transitions. [2022-07-19 13:03:21,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 13:03:21,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:21,045 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 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] [2022-07-19 13:03:21,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:21,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:21,262 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1291508586, now seen corresponding path program 1 times [2022-07-19 13:03:21,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:21,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355052441] [2022-07-19 13:03:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:21,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:21,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:21,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355052441] [2022-07-19 13:03:21,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355052441] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:21,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479039503] [2022-07-19 13:03:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:21,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:21,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:21,294 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:21,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 13:03:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:21,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 13:03:21,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:21,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-19 13:03:21,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479039503] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:21,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:21,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-19 13:03:21,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544700085] [2022-07-19 13:03:21,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:21,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 13:03:21,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:21,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 13:03:21,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:03:21,438 INFO L87 Difference]: Start difference. First operand 309 states and 448 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:03:21,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:21,526 INFO L93 Difference]: Finished difference Result 810 states and 1182 transitions. [2022-07-19 13:03:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 13:03:21,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:03:21,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:21,528 INFO L225 Difference]: With dead ends: 810 [2022-07-19 13:03:21,528 INFO L226 Difference]: Without dead ends: 643 [2022-07-19 13:03:21,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-19 13:03:21,529 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 603 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:21,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 688 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:21,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-07-19 13:03:21,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 628. [2022-07-19 13:03:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.4290271132376395) internal successors, (896), 627 states have internal predecessors, (896), 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 13:03:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 896 transitions. [2022-07-19 13:03:21,541 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 896 transitions. Word has length 55 [2022-07-19 13:03:21,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:21,541 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 896 transitions. [2022-07-19 13:03:21,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 13:03:21,541 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 896 transitions. [2022-07-19 13:03:21,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 13:03:21,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:21,542 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 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] [2022-07-19 13:03:21,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:21,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:21,759 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:21,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:21,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1903289774, now seen corresponding path program 1 times [2022-07-19 13:03:21,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:21,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197398934] [2022-07-19 13:03:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:21,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:21,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:21,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197398934] [2022-07-19 13:03:21,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197398934] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:21,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966719161] [2022-07-19 13:03:21,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:21,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:21,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:21,844 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:21,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 13:03:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:21,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-19 13:03:21,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:22,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:22,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966719161] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:22,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:22,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-07-19 13:03:22,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521662702] [2022-07-19 13:03:22,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:22,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 13:03:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 13:03:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-07-19 13:03:22,241 INFO L87 Difference]: Start difference. First operand 628 states and 896 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 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 13:03:22,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:22,355 INFO L93 Difference]: Finished difference Result 636 states and 900 transitions. [2022-07-19 13:03:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 13:03:22,355 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 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 56 [2022-07-19 13:03:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:22,357 INFO L225 Difference]: With dead ends: 636 [2022-07-19 13:03:22,357 INFO L226 Difference]: Without dead ends: 634 [2022-07-19 13:03:22,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-19 13:03:22,357 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 142 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:22,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1079 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:22,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-07-19 13:03:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 628. [2022-07-19 13:03:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.4210526315789473) internal successors, (891), 627 states have internal predecessors, (891), 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 13:03:22,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 891 transitions. [2022-07-19 13:03:22,369 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 891 transitions. Word has length 56 [2022-07-19 13:03:22,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:22,369 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 891 transitions. [2022-07-19 13:03:22,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 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 13:03:22,370 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 891 transitions. [2022-07-19 13:03:22,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-19 13:03:22,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:22,370 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2022-07-19 13:03:22,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:22,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-19 13:03:22,588 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1029731011, now seen corresponding path program 1 times [2022-07-19 13:03:22,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:22,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246590658] [2022-07-19 13:03:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:22,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:22,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:22,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246590658] [2022-07-19 13:03:22,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246590658] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:22,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229595850] [2022-07-19 13:03:22,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:22,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:22,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:22,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:22,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 13:03:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:22,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-19 13:03:22,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:23,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:23,398 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-19 13:03:23,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229595850] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:23,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:23,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 12 [2022-07-19 13:03:23,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978436410] [2022-07-19 13:03:23,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:23,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 13:03:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 13:03:23,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 13:03:23,400 INFO L87 Difference]: Start difference. First operand 628 states and 891 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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 13:03:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:23,673 INFO L93 Difference]: Finished difference Result 638 states and 896 transitions. [2022-07-19 13:03:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 13:03:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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 63 [2022-07-19 13:03:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:23,675 INFO L225 Difference]: With dead ends: 638 [2022-07-19 13:03:23,675 INFO L226 Difference]: Without dead ends: 636 [2022-07-19 13:03:23,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-19 13:03:23,676 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 254 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:23,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 2141 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 13:03:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-07-19 13:03:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 628. [2022-07-19 13:03:23,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.405103668261563) internal successors, (881), 627 states have internal predecessors, (881), 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 13:03:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 881 transitions. [2022-07-19 13:03:23,688 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 881 transitions. Word has length 63 [2022-07-19 13:03:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:23,688 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 881 transitions. [2022-07-19 13:03:23,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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 13:03:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 881 transitions. [2022-07-19 13:03:23,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-19 13:03:23,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:23,689 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 5, 3, 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] [2022-07-19 13:03:23,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-19 13:03:23,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-19 13:03:23,906 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:23,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:23,907 INFO L85 PathProgramCache]: Analyzing trace with hash -112559507, now seen corresponding path program 1 times [2022-07-19 13:03:23,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:23,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513684243] [2022-07-19 13:03:23,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:23,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 21 proven. 110 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 13:03:24,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:24,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513684243] [2022-07-19 13:03:24,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513684243] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:24,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924293550] [2022-07-19 13:03:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:24,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:24,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:24,092 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:24,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 13:03:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:24,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-19 13:03:24,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 21 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:24,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 51 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:03:24,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924293550] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:24,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:24,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2022-07-19 13:03:24,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224520604] [2022-07-19 13:03:24,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:24,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-19 13:03:24,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:24,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-19 13:03:24,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-07-19 13:03:24,954 INFO L87 Difference]: Start difference. First operand 628 states and 881 transitions. Second operand has 20 states, 20 states have (on average 10.45) internal successors, (209), 20 states have internal predecessors, (209), 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 13:03:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:25,197 INFO L93 Difference]: Finished difference Result 632 states and 883 transitions. [2022-07-19 13:03:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 13:03:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 10.45) internal successors, (209), 20 states have internal predecessors, (209), 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 86 [2022-07-19 13:03:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:25,200 INFO L225 Difference]: With dead ends: 632 [2022-07-19 13:03:25,200 INFO L226 Difference]: Without dead ends: 630 [2022-07-19 13:03:25,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2022-07-19 13:03:25,200 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 245 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:25,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 2364 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 13:03:25,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-07-19 13:03:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 628. [2022-07-19 13:03:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 1.4019138755980862) internal successors, (879), 627 states have internal predecessors, (879), 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 13:03:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 879 transitions. [2022-07-19 13:03:25,215 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 879 transitions. Word has length 86 [2022-07-19 13:03:25,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:25,215 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 879 transitions. [2022-07-19 13:03:25,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.45) internal successors, (209), 20 states have internal predecessors, (209), 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 13:03:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 879 transitions. [2022-07-19 13:03:25,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 13:03:25,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:25,218 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:25,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:25,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-19 13:03:25,435 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:25,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:25,436 INFO L85 PathProgramCache]: Analyzing trace with hash -520376012, now seen corresponding path program 1 times [2022-07-19 13:03:25,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:25,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236118521] [2022-07-19 13:03:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:25,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 91 proven. 330 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 13:03:25,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236118521] [2022-07-19 13:03:25,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236118521] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800570528] [2022-07-19 13:03:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:25,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:25,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:25,552 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:25,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 13:03:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:25,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-19 13:03:25,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 91 proven. 330 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 13:03:25,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 91 proven. 330 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 13:03:26,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800570528] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:26,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:26,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-07-19 13:03:26,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513150527] [2022-07-19 13:03:26,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:26,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-19 13:03:26,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:26,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-19 13:03:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2022-07-19 13:03:26,006 INFO L87 Difference]: Start difference. First operand 628 states and 879 transitions. Second operand has 17 states, 17 states have (on average 14.0) internal successors, (238), 17 states have internal predecessors, (238), 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 13:03:26,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:26,196 INFO L93 Difference]: Finished difference Result 1687 states and 2343 transitions. [2022-07-19 13:03:26,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 13:03:26,197 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.0) internal successors, (238), 17 states have internal predecessors, (238), 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 147 [2022-07-19 13:03:26,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:26,200 INFO L225 Difference]: With dead ends: 1687 [2022-07-19 13:03:26,200 INFO L226 Difference]: Without dead ends: 1323 [2022-07-19 13:03:26,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2022-07-19 13:03:26,201 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 2257 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:26,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 1420 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:26,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-07-19 13:03:26,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1252. [2022-07-19 13:03:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1251 states have (on average 1.3996802557953638) internal successors, (1751), 1251 states have internal predecessors, (1751), 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 13:03:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1751 transitions. [2022-07-19 13:03:26,228 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1751 transitions. Word has length 147 [2022-07-19 13:03:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:26,229 INFO L495 AbstractCegarLoop]: Abstraction has 1252 states and 1751 transitions. [2022-07-19 13:03:26,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.0) internal successors, (238), 17 states have internal predecessors, (238), 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 13:03:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1751 transitions. [2022-07-19 13:03:26,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-19 13:03:26,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:26,232 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 28, 21, 21, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:26,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:26,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:26,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:26,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -691826832, now seen corresponding path program 2 times [2022-07-19 13:03:26,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:26,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620117103] [2022-07-19 13:03:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:03:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 227 proven. 2258 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-19 13:03:26,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:03:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620117103] [2022-07-19 13:03:26,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620117103] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 13:03:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150774708] [2022-07-19 13:03:26,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 13:03:26,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:26,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:03:26,784 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 13:03:26,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 13:03:27,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 13:03:27,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 13:03:27,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-19 13:03:27,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:03:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 227 proven. 2258 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-19 13:03:27,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 13:03:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 227 proven. 2258 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-19 13:03:27,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150774708] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 13:03:27,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 13:03:27,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 20 [2022-07-19 13:03:27,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710234040] [2022-07-19 13:03:27,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 13:03:27,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-19 13:03:27,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:03:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-19 13:03:27,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2022-07-19 13:03:27,694 INFO L87 Difference]: Start difference. First operand 1252 states and 1751 transitions. Second operand has 20 states, 20 states have (on average 16.3) internal successors, (326), 20 states have internal predecessors, (326), 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 13:03:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:03:27,885 INFO L93 Difference]: Finished difference Result 2222 states and 3089 transitions. [2022-07-19 13:03:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 13:03:27,885 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 16.3) internal successors, (326), 20 states have internal predecessors, (326), 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 331 [2022-07-19 13:03:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:03:27,890 INFO L225 Difference]: With dead ends: 2222 [2022-07-19 13:03:27,890 INFO L226 Difference]: Without dead ends: 1546 [2022-07-19 13:03:27,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2022-07-19 13:03:27,891 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 2164 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:03:27,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 1472 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 13:03:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2022-07-19 13:03:27,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1486. [2022-07-19 13:03:27,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 1.3986531986531987) internal successors, (2077), 1485 states have internal predecessors, (2077), 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 13:03:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2077 transitions. [2022-07-19 13:03:27,952 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2077 transitions. Word has length 331 [2022-07-19 13:03:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:03:27,952 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2077 transitions. [2022-07-19 13:03:27,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 16.3) internal successors, (326), 20 states have internal predecessors, (326), 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 13:03:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2077 transitions. [2022-07-19 13:03:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-19 13:03:27,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:03:27,956 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 25, 25, 16, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:27,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-19 13:03:28,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 13:03:28,156 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:03:28,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:03:28,157 INFO L85 PathProgramCache]: Analyzing trace with hash 49372446, now seen corresponding path program 1 times [2022-07-19 13:03:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:03:28,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015751986] [2022-07-19 13:03:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:03:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:03:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:03:28,901 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:03:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:03:29,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:03:29,472 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:03:29,473 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:03:29,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 13:03:29,476 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:03:29,479 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:03:29,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:03:29 BoogieIcfgContainer [2022-07-19 13:03:29,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:03:29,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:03:29,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:03:29,625 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:03:29,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:03:15" (3/4) ... [2022-07-19 13:03:29,626 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 13:03:29,774 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 13:03:29,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:03:29,774 INFO L158 Benchmark]: Toolchain (without parser) took 15437.71ms. Allocated memory was 102.8MB in the beginning and 249.6MB in the end (delta: 146.8MB). Free memory was 68.7MB in the beginning and 88.9MB in the end (delta: -20.1MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,775 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 55.9MB in the beginning and 55.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:03:29,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.15ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 69.6MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.49ms. Allocated memory is still 102.8MB. Free memory was 69.6MB in the beginning and 65.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,776 INFO L158 Benchmark]: Boogie Preprocessor took 33.18ms. Allocated memory is still 102.8MB. Free memory was 65.0MB in the beginning and 62.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,778 INFO L158 Benchmark]: RCFGBuilder took 774.09ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 62.0MB in the beginning and 93.5MB in the end (delta: -31.5MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,779 INFO L158 Benchmark]: TraceAbstraction took 14111.48ms. Allocated memory was 136.3MB in the beginning and 249.6MB in the end (delta: 113.2MB). Free memory was 93.4MB in the beginning and 121.7MB in the end (delta: -28.3MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,779 INFO L158 Benchmark]: Witness Printer took 149.49ms. Allocated memory is still 249.6MB. Free memory was 121.7MB in the beginning and 88.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-07-19 13:03:29,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory was 55.9MB in the beginning and 55.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.15ms. Allocated memory is still 102.8MB. Free memory was 68.5MB in the beginning and 69.6MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.49ms. Allocated memory is still 102.8MB. Free memory was 69.6MB in the beginning and 65.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.18ms. Allocated memory is still 102.8MB. Free memory was 65.0MB in the beginning and 62.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 774.09ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 62.0MB in the beginning and 93.5MB in the end (delta: -31.5MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14111.48ms. Allocated memory was 136.3MB in the beginning and 249.6MB in the end (delta: 113.2MB). Free memory was 93.4MB in the beginning and 121.7MB in the end (delta: -28.3MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. * Witness Printer took 149.49ms. Allocated memory is still 249.6MB. Free memory was 121.7MB in the beginning and 88.9MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 571]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3] [L18] int q = 0; [L19] int method_id; [L22] int this_expect = 0; [L23] int this_buffer_empty = 0; VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, q=0, this_buffer_empty=0, this_expect=0] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, P1=-3, P2=0, P3=0, P4=0, P5=0, P6=-1, P7=4, P8=0, P9=-4, q=0, this_buffer_empty=0, this_expect=0] [L45] COND TRUE q == 0 [L46] COND TRUE __VERIFIER_nondet_int() [L50] method_id = 1 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=1, P1=-3, P2=0, P3=0, P4=0, P5=0, P6=-1, P7=4, P8=0, P9=-4, q=0, this_buffer_empty=0, this_expect=0] [L52] COND FALSE !(0) [L56] q = 1 [L58] this_expect=0 [L58] this_buffer_empty=1 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=1, P1=-3, P2=0, P3=0, P4=0, P5=0, P6=-1, P7=4, P8=0, P9=-4, q=1, this_buffer_empty=1, this_expect=0] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=1, P1=56, P2=0, P3=0, P4=0, P5=0, P6=5, P7=-5, P8=0, P9=6, q=1, this_buffer_empty=1, this_expect=0] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=1, P1=56, P2=0, P3=0, P4=0, P5=0, P6=5, P7=-5, P8=0, P9=6, q=1, this_buffer_empty=1, this_expect=0] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=56, P2=0, P3=0, P4=0, P5=0, P6=5, P7=-5, P8=0, P9=6, q=1, this_buffer_empty=1, this_expect=0] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=56, P2=0, P3=0, P4=0, P5=0, P6=5, P7=-5, P8=0, P9=6, q=3, this_buffer_empty=0, this_expect=1] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-6, P7=7, P8=0, P9=-7, q=3, this_buffer_empty=0, this_expect=1] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-6, P7=7, P8=0, P9=-7, q=3, this_buffer_empty=0, this_expect=1] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-6, P7=7, P8=0, P9=-7, q=3, this_buffer_empty=0, this_expect=1] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-6, P7=7, P8=0, P9=-7, q=3, this_buffer_empty=0, this_expect=1] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-6, P7=7, P8=0, P9=-7, q=3, this_buffer_empty=0, this_expect=1] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-6, P7=7, P8=0, P9=-7, q=4, this_buffer_empty=1, this_expect=1] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=4, this_buffer_empty=1, this_expect=1] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=4, this_buffer_empty=1, this_expect=1] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=4, this_buffer_empty=1, this_expect=1] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=4, this_buffer_empty=1, this_expect=1] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=4, this_buffer_empty=1, this_expect=1] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=4, this_buffer_empty=1, this_expect=1] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=51, P2=0, P3=0, P4=0, P5=0, P6=69, P7=8, P8=0, P9=-8, q=5, this_buffer_empty=0, this_expect=2] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=5, this_buffer_empty=0, this_expect=2] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=9, P7=-9, P8=0, P9=54, q=1, this_buffer_empty=1, this_expect=2] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-50, P2=0, P3=0, P4=0, P5=0, P6=10, P7=-10, P8=0, P9=11, q=1, this_buffer_empty=1, this_expect=2] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-50, P2=0, P3=0, P4=0, P5=0, P6=10, P7=-10, P8=0, P9=11, q=1, this_buffer_empty=1, this_expect=2] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-50, P2=0, P3=0, P4=0, P5=0, P6=10, P7=-10, P8=0, P9=11, q=1, this_buffer_empty=1, this_expect=2] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-50, P2=0, P3=0, P4=0, P5=0, P6=10, P7=-10, P8=0, P9=11, q=3, this_buffer_empty=0, this_expect=3] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-11, P7=-12, P8=0, P9=13, q=3, this_buffer_empty=0, this_expect=3] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-11, P7=-12, P8=0, P9=13, q=3, this_buffer_empty=0, this_expect=3] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-11, P7=-12, P8=0, P9=13, q=3, this_buffer_empty=0, this_expect=3] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-11, P7=-12, P8=0, P9=13, q=3, this_buffer_empty=0, this_expect=3] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-11, P7=-12, P8=0, P9=13, q=3, this_buffer_empty=0, this_expect=3] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-11, P7=-12, P8=0, P9=13, q=4, this_buffer_empty=1, this_expect=3] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=4, this_buffer_empty=1, this_expect=3] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=4, this_buffer_empty=1, this_expect=3] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=4, this_buffer_empty=1, this_expect=3] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=4, this_buffer_empty=1, this_expect=3] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=4, this_buffer_empty=1, this_expect=3] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=4, this_buffer_empty=1, this_expect=3] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=53, P2=0, P3=0, P4=0, P5=0, P6=72, P7=-13, P8=0, P9=14, q=5, this_buffer_empty=0, this_expect=4] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=4] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-14, P7=15, P8=0, P9=1, q=1, this_buffer_empty=1, this_expect=4] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-52, P2=0, P3=0, P4=0, P5=0, P6=-15, P7=-16, P8=0, P9=17, q=1, this_buffer_empty=1, this_expect=4] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-52, P2=0, P3=0, P4=0, P5=0, P6=-15, P7=-16, P8=0, P9=17, q=1, this_buffer_empty=1, this_expect=4] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-52, P2=0, P3=0, P4=0, P5=0, P6=-15, P7=-16, P8=0, P9=17, q=1, this_buffer_empty=1, this_expect=4] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-52, P2=0, P3=0, P4=0, P5=0, P6=-15, P7=-16, P8=0, P9=17, q=3, this_buffer_empty=0, this_expect=5] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-17, P7=18, P8=0, P9=-18, q=3, this_buffer_empty=0, this_expect=5] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-17, P7=18, P8=0, P9=-18, q=3, this_buffer_empty=0, this_expect=5] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-17, P7=18, P8=0, P9=-18, q=3, this_buffer_empty=0, this_expect=5] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-17, P7=18, P8=0, P9=-18, q=3, this_buffer_empty=0, this_expect=5] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-17, P7=18, P8=0, P9=-18, q=3, this_buffer_empty=0, this_expect=5] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-17, P7=18, P8=0, P9=-18, q=4, this_buffer_empty=1, this_expect=5] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=4, this_buffer_empty=1, this_expect=5] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=4, this_buffer_empty=1, this_expect=5] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=4, this_buffer_empty=1, this_expect=5] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=4, this_buffer_empty=1, this_expect=5] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=4, this_buffer_empty=1, this_expect=5] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=4, this_buffer_empty=1, this_expect=5] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=55, P2=0, P3=0, P4=0, P5=0, P6=73, P7=19, P8=0, P9=-19, q=5, this_buffer_empty=0, this_expect=6] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=5, this_buffer_empty=0, this_expect=6] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=20, P7=-20, P8=0, P9=-51, q=1, this_buffer_empty=1, this_expect=6] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-54, P2=0, P3=0, P4=0, P5=0, P6=21, P7=-21, P8=0, P9=22, q=1, this_buffer_empty=1, this_expect=6] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-54, P2=0, P3=0, P4=0, P5=0, P6=21, P7=-21, P8=0, P9=22, q=1, this_buffer_empty=1, this_expect=6] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-54, P2=0, P3=0, P4=0, P5=0, P6=21, P7=-21, P8=0, P9=22, q=1, this_buffer_empty=1, this_expect=6] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-54, P2=0, P3=0, P4=0, P5=0, P6=21, P7=-21, P8=0, P9=22, q=3, this_buffer_empty=0, this_expect=7] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-22, P7=23, P8=0, P9=-23, q=3, this_buffer_empty=0, this_expect=7] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-22, P7=23, P8=0, P9=-23, q=3, this_buffer_empty=0, this_expect=7] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-22, P7=23, P8=0, P9=-23, q=3, this_buffer_empty=0, this_expect=7] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-22, P7=23, P8=0, P9=-23, q=3, this_buffer_empty=0, this_expect=7] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-22, P7=23, P8=0, P9=-23, q=3, this_buffer_empty=0, this_expect=7] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=1, P4=0, P5=0, P6=-22, P7=23, P8=0, P9=-23, q=4, this_buffer_empty=1, this_expect=7] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=4, this_buffer_empty=1, this_expect=7] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=4, this_buffer_empty=1, this_expect=7] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=4, this_buffer_empty=1, this_expect=7] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=4, this_buffer_empty=1, this_expect=7] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=4, this_buffer_empty=1, this_expect=7] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=4, this_buffer_empty=1, this_expect=7] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=57, P2=0, P3=0, P4=0, P5=0, P6=75, P7=24, P8=0, P9=-24, q=5, this_buffer_empty=0, this_expect=8] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=8] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=25, P7=-25, P8=0, P9=0, q=1, this_buffer_empty=1, this_expect=8] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=58, P2=0, P3=0, P4=0, P5=0, P6=26, P7=-26, P8=0, P9=27, q=1, this_buffer_empty=1, this_expect=8] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=58, P2=0, P3=0, P4=0, P5=0, P6=26, P7=-26, P8=0, P9=27, q=1, this_buffer_empty=1, this_expect=8] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=58, P2=0, P3=0, P4=0, P5=0, P6=26, P7=-26, P8=0, P9=27, q=1, this_buffer_empty=1, this_expect=8] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=58, P2=0, P3=0, P4=0, P5=0, P6=26, P7=-26, P8=0, P9=27, q=3, this_buffer_empty=0, this_expect=9] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-27, P7=28, P8=0, P9=-28, q=3, this_buffer_empty=0, this_expect=9] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-27, P7=28, P8=0, P9=-28, q=3, this_buffer_empty=0, this_expect=9] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-27, P7=28, P8=0, P9=-28, q=3, this_buffer_empty=0, this_expect=9] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-27, P7=28, P8=0, P9=-28, q=3, this_buffer_empty=0, this_expect=9] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-27, P7=28, P8=0, P9=-28, q=3, this_buffer_empty=0, this_expect=9] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-27, P7=28, P8=0, P9=-28, q=4, this_buffer_empty=1, this_expect=9] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=4, this_buffer_empty=1, this_expect=9] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=4, this_buffer_empty=1, this_expect=9] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=4, this_buffer_empty=1, this_expect=9] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=4, this_buffer_empty=1, this_expect=9] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=4, this_buffer_empty=1, this_expect=9] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=4, this_buffer_empty=1, this_expect=9] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=59, P2=0, P3=0, P4=0, P5=0, P6=61, P7=29, P8=0, P9=-29, q=5, this_buffer_empty=0, this_expect=10] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=5, this_buffer_empty=0, this_expect=10] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=30, P7=-30, P8=0, P9=0, q=1, this_buffer_empty=1, this_expect=10] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-56, P2=0, P3=0, P4=0, P5=0, P6=31, P7=-31, P8=0, P9=32, q=1, this_buffer_empty=1, this_expect=10] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-56, P2=0, P3=0, P4=0, P5=0, P6=31, P7=-31, P8=0, P9=32, q=1, this_buffer_empty=1, this_expect=10] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-56, P2=0, P3=0, P4=0, P5=0, P6=31, P7=-31, P8=0, P9=32, q=1, this_buffer_empty=1, this_expect=10] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-56, P2=0, P3=0, P4=0, P5=0, P6=31, P7=-31, P8=0, P9=32, q=3, this_buffer_empty=0, this_expect=11] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-32, P7=33, P8=0, P9=-33, q=3, this_buffer_empty=0, this_expect=11] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-32, P7=33, P8=0, P9=-33, q=3, this_buffer_empty=0, this_expect=11] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-32, P7=33, P8=0, P9=-33, q=3, this_buffer_empty=0, this_expect=11] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-32, P7=33, P8=0, P9=-33, q=3, this_buffer_empty=0, this_expect=11] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-32, P7=33, P8=0, P9=-33, q=3, this_buffer_empty=0, this_expect=11] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=-1, P4=0, P5=0, P6=-32, P7=33, P8=0, P9=-33, q=4, this_buffer_empty=1, this_expect=11] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=4, this_buffer_empty=1, this_expect=11] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=4, this_buffer_empty=1, this_expect=11] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=4, this_buffer_empty=1, this_expect=11] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=4, this_buffer_empty=1, this_expect=11] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=4, this_buffer_empty=1, this_expect=11] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=4, this_buffer_empty=1, this_expect=11] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=63, P2=0, P3=0, P4=0, P5=0, P6=-36, P7=34, P8=0, P9=-34, q=5, this_buffer_empty=0, this_expect=12] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=5, this_buffer_empty=0, this_expect=12] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=35, P7=-35, P8=0, P9=1, q=1, this_buffer_empty=1, this_expect=12] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-58, P2=0, P3=0, P4=0, P5=0, P6=36, P7=37, P8=0, P9=-37, q=1, this_buffer_empty=1, this_expect=12] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-58, P2=0, P3=0, P4=0, P5=0, P6=36, P7=37, P8=0, P9=-37, q=1, this_buffer_empty=1, this_expect=12] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-58, P2=0, P3=0, P4=0, P5=0, P6=36, P7=37, P8=0, P9=-37, q=1, this_buffer_empty=1, this_expect=12] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-58, P2=0, P3=0, P4=0, P5=0, P6=36, P7=37, P8=0, P9=-37, q=3, this_buffer_empty=0, this_expect=13] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=38, P7=-38, P8=0, P9=39, q=3, this_buffer_empty=0, this_expect=13] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=38, P7=-38, P8=0, P9=39, q=3, this_buffer_empty=0, this_expect=13] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=38, P7=-38, P8=0, P9=39, q=3, this_buffer_empty=0, this_expect=13] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=38, P7=-38, P8=0, P9=39, q=3, this_buffer_empty=0, this_expect=13] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=38, P7=-38, P8=0, P9=39, q=3, this_buffer_empty=0, this_expect=13] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=38, P7=-38, P8=0, P9=39, q=4, this_buffer_empty=1, this_expect=13] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=4, this_buffer_empty=1, this_expect=13] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=4, this_buffer_empty=1, this_expect=13] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=4, this_buffer_empty=1, this_expect=13] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=4, this_buffer_empty=1, this_expect=13] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=4, this_buffer_empty=1, this_expect=13] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=4, this_buffer_empty=1, this_expect=13] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=65, P2=0, P3=0, P4=0, P5=0, P6=77, P7=-39, P8=0, P9=40, q=5, this_buffer_empty=0, this_expect=14] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=5, this_buffer_empty=0, this_expect=14] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-40, P7=41, P8=0, P9=50, q=1, this_buffer_empty=1, this_expect=14] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=60, P2=0, P3=0, P4=0, P5=0, P6=-41, P7=42, P8=0, P9=-42, q=1, this_buffer_empty=1, this_expect=14] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=60, P2=0, P3=0, P4=0, P5=0, P6=-41, P7=42, P8=0, P9=-42, q=1, this_buffer_empty=1, this_expect=14] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=60, P2=0, P3=0, P4=0, P5=0, P6=-41, P7=42, P8=0, P9=-42, q=1, this_buffer_empty=1, this_expect=14] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=60, P2=0, P3=0, P4=0, P5=0, P6=-41, P7=42, P8=0, P9=-42, q=3, this_buffer_empty=0, this_expect=15] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=43, P7=-43, P8=0, P9=44, q=3, this_buffer_empty=0, this_expect=15] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=43, P7=-43, P8=0, P9=44, q=3, this_buffer_empty=0, this_expect=15] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=43, P7=-43, P8=0, P9=44, q=3, this_buffer_empty=0, this_expect=15] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=43, P7=-43, P8=0, P9=44, q=3, this_buffer_empty=0, this_expect=15] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=43, P7=-43, P8=0, P9=44, q=3, this_buffer_empty=0, this_expect=15] [L288] COND FALSE !((((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2))))) [L292] q = 4 [L294] this_expect=this_expect [L294] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=43, P7=-43, P8=0, P9=44, q=4, this_buffer_empty=1, this_expect=15] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=4, this_buffer_empty=1, this_expect=15] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=4, this_buffer_empty=1, this_expect=15] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=4, this_buffer_empty=1, this_expect=15] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=4, this_buffer_empty=1, this_expect=15] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=4, this_buffer_empty=1, this_expect=15] [L365] COND TRUE q == 4 [L366] COND FALSE !(__VERIFIER_nondet_int()) [L382] COND FALSE !(__VERIFIER_nondet_int()) [L398] COND FALSE !(__VERIFIER_nondet_int()) [L414] COND TRUE __VERIFIER_nondet_int() [L416] COND TRUE (((P1 % 2) != (0 % 2)) && !(((P1 % 2) != ((0 + 1) % 2)) && ((P1 % 2) != (0 % 2)))) [L418] method_id = 5 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=4, this_buffer_empty=1, this_expect=15] [L420] COND FALSE !(((((((P6 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))) || (((this_buffer_empty != 1) && ((P6 % 2) != (0 % 2))) && (((P6 % 2) != (0 % 2)) && !(((P6 % 2) != ((0 + 1) % 2)) && ((P6 % 2) != (0 % 2))))))) [L424] q = 5 [L426] this_expect=(this_expect + 1) [L426] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=67, P2=0, P3=0, P4=0, P5=0, P6=79, P7=-44, P8=0, P9=45, q=5, this_buffer_empty=0, this_expect=16] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L265] COND FALSE !(q == 3) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L365] COND FALSE !(q == 4) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=5, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L465] COND TRUE q == 5 [L466] COND FALSE !(__VERIFIER_nondet_int()) [L482] COND FALSE !(__VERIFIER_nondet_int()) [L498] COND FALSE !(__VERIFIER_nondet_int()) [L514] COND FALSE !(__VERIFIER_nondet_int()) [L530] COND FALSE !(__VERIFIER_nondet_int()) [L546] COND TRUE __VERIFIER_nondet_int() [L548] COND TRUE ((P1 != (((0 + 1) - 1) % 2)) && !((P1 != ((((0 + 1) + 1) - 1) % 2)) && (P1 != (((0 + 1) - 1) % 2)))) [L550] method_id = 7 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=5, this_buffer_empty=0, this_expect=16] [L552] COND FALSE !(((((this_buffer_empty == 1) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))) || ((((P9 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && (P9 != (((0 + 1) - 1) % 2))) && ((P9 != (((0 + 1) - 1) % 2)) && !((P9 != ((((0 + 1) + 1) - 1) % 2)) && (P9 != (((0 + 1) - 1) % 2))))))) [L556] q = 1 [L558] this_expect=this_expect [L558] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=1, P2=0, P3=0, P4=0, P5=0, P6=-45, P7=46, P8=0, P9=52, q=1, this_buffer_empty=1, this_expect=16] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-2, P2=0, P3=0, P4=0, P5=0, P6=-46, P7=47, P8=0, P9=-47, q=1, this_buffer_empty=1, this_expect=16] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=7, P1=-2, P2=0, P3=0, P4=0, P5=0, P6=-46, P7=47, P8=0, P9=-47, q=1, this_buffer_empty=1, this_expect=16] [L65] COND TRUE q == 1 [L66] COND TRUE __VERIFIER_nondet_int() [L68] COND TRUE !((P1 % 2) != (0 % 2)) [L70] method_id = 2 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-2, P2=0, P3=0, P4=0, P5=0, P6=-46, P7=47, P8=0, P9=-47, q=1, this_buffer_empty=1, this_expect=16] [L72] COND FALSE !((((((P1 % 2) != (this_expect % 2)) && (this_buffer_empty == 1)) && !((P1 % 2) != (0 % 2))) || ((this_buffer_empty != 1) && !((P1 % 2) != (0 % 2))))) [L76] q = 3 [L78] this_expect=(this_expect + 1) [L78] this_buffer_empty=(1 - this_buffer_empty) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=-2, P2=0, P3=0, P4=0, P5=0, P6=-46, P7=47, P8=0, P9=-47, q=3, this_buffer_empty=0, this_expect=17] [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND TRUE this_expect > 16 [L41] this_expect = -16 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] [L45] COND FALSE !(q == 0) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] [L65] COND FALSE !(q == 1) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] [L165] COND FALSE !(q == 2) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=2, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] [L265] COND TRUE q == 3 [L266] COND FALSE !(__VERIFIER_nondet_int()) [L282] COND TRUE __VERIFIER_nondet_int() [L284] COND TRUE !(P1 != (((0 + 1) - 1) % 2)) [L286] method_id = 3 VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] [L288] COND TRUE (((this_buffer_empty == 1) && !(P3 != (((0 + 1) - 1) % 2))) || (((P3 != ((this_expect - 1) % 2)) && (this_buffer_empty != 1)) && !(P3 != (((0 + 1) - 1) % 2)))) VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] [L571] reach_error() VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, method_id=3, P1=0, P2=0, P3=0, P4=0, P5=0, P6=-48, P7=49, P8=0, P9=-49, q=3, this_buffer_empty=0, this_expect=-16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 21, TraceHistogramMax: 35, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7563 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7563 mSDsluCounter, 15335 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11688 mSDsCounter, 542 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2403 IncrementalHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 542 mSolverCounterUnsat, 3647 mSDtfsCounter, 2403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1985 GetRequests, 1837 SyntacticMatches, 22 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1486occurred in iteration=20, InterpolantAutomatonStates: 148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 266 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 2525 NumberOfCodeBlocks, 2525 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2993 ConstructedInterpolants, 0 QuantifiedInterpolants, 15369 SizeOfPredicates, 27 NumberOfNonLiveVariables, 6082 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 43 InterpolantComputations, 9 PerfectInterpolantSequences, 1827/10338 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 13:03:29,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE