./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label15.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/eca-rers2012/Problem14_label15.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 d154970bf8f87df5a7a8b8a11de7e4dc3a9f3ce2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 23:27:27,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:27:27,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:27:27,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:27:27,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:27:27,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:27:27,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:27:27,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:27:27,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:27:27,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:27:27,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:27:27,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:27:27,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:27:27,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:27:27,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:27:27,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:27:27,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:27:27,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:27:27,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:27:27,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:27:27,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:27:27,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:27:27,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:27:27,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:27:27,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:27:27,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:27:27,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:27:27,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:27:27,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:27:27,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:27:27,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:27:27,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:27:27,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:27:27,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:27:27,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:27:27,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:27:27,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:27:27,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:27:27,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:27:27,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:27:27,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:27:27,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:27:27,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:27:27,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:27:27,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:27:27,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:27:27,662 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:27:27,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:27:27,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:27:27,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:27:27,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:27:27,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:27:27,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:27:27,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:27:27,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:27:27,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:27:27,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:27:27,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:27:27,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:27:27,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:27:27,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:27:27,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:27:27,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:27:27,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:27:27,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:27:27,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:27:27,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:27:27,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:27:27,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:27:27,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:27:27,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:27:27,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> d154970bf8f87df5a7a8b8a11de7e4dc3a9f3ce2 [2020-10-19 23:27:27,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:27:27,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:27:27,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:27:27,946 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:27:27,947 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:27:27,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label15.c [2020-10-19 23:27:28,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ef81056/a61666eec35e4eea85d663870aa5bbfd/FLAG0b3fb50fd [2020-10-19 23:27:28,545 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:27:28,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label15.c [2020-10-19 23:27:28,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ef81056/a61666eec35e4eea85d663870aa5bbfd/FLAG0b3fb50fd [2020-10-19 23:27:28,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ef81056/a61666eec35e4eea85d663870aa5bbfd [2020-10-19 23:27:28,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:27:28,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:27:28,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:27:28,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:27:28,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:27:28,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:27:28" (1/1) ... [2020-10-19 23:27:28,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4951d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:28, skipping insertion in model container [2020-10-19 23:27:28,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:27:28" (1/1) ... [2020-10-19 23:27:28,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:27:28,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:27:29,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:27:29,517 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:27:29,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:27:29,691 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:27:29,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29 WrapperNode [2020-10-19 23:27:29,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:27:29,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:27:29,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:27:29,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:27:29,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:27:29,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:27:29,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:27:29,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:27:29,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... [2020-10-19 23:27:29,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:27:29,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:27:29,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:27:29,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:27:29,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:27:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:27:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:27:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:27:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:27:31,892 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:27:31,893 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:27:31,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:27:31 BoogieIcfgContainer [2020-10-19 23:27:31,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:27:31,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:27:31,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:27:31,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:27:31,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:27:28" (1/3) ... [2020-10-19 23:27:31,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7521c153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:27:31, skipping insertion in model container [2020-10-19 23:27:31,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:27:29" (2/3) ... [2020-10-19 23:27:31,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7521c153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:27:31, skipping insertion in model container [2020-10-19 23:27:31,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:27:31" (3/3) ... [2020-10-19 23:27:31,906 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label15.c [2020-10-19 23:27:31,919 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:27:31,928 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:27:31,943 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:27:31,973 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:27:31,974 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:27:31,974 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:27:31,974 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:27:31,975 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:27:31,975 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:27:31,975 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:27:31,975 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:27:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-19 23:27:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-19 23:27:32,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:32,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:32,011 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:32,017 INFO L82 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2020-10-19 23:27:32,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:32,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099494015] [2020-10-19 23:27:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:27:32,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099494015] [2020-10-19 23:27:32,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:32,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:27:32,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917308290] [2020-10-19 23:27:32,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:32,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:32,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:32,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:32,412 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-19 23:27:33,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:33,812 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-10-19 23:27:33,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:33,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-10-19 23:27:33,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:33,832 INFO L225 Difference]: With dead ends: 686 [2020-10-19 23:27:33,832 INFO L226 Difference]: Without dead ends: 360 [2020-10-19 23:27:33,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-19 23:27:33,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-19 23:27:33,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-19 23:27:33,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-10-19 23:27:33,909 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 65 [2020-10-19 23:27:33,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:33,910 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-10-19 23:27:33,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:33,910 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-10-19 23:27:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-19 23:27:33,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:33,918 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:33,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:27:33,918 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:33,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:33,919 INFO L82 PathProgramCache]: Analyzing trace with hash -385467193, now seen corresponding path program 1 times [2020-10-19 23:27:33,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:33,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047019057] [2020-10-19 23:27:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:27:34,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047019057] [2020-10-19 23:27:34,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:34,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:34,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836109881] [2020-10-19 23:27:34,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:27:34,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:34,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:27:34,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:27:34,218 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-10-19 23:27:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:35,716 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-10-19 23:27:35,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:27:35,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2020-10-19 23:27:35,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:35,722 INFO L225 Difference]: With dead ends: 1074 [2020-10-19 23:27:35,722 INFO L226 Difference]: Without dead ends: 716 [2020-10-19 23:27:35,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:35,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-19 23:27:35,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-19 23:27:35,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-19 23:27:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-10-19 23:27:35,763 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 144 [2020-10-19 23:27:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:35,764 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-10-19 23:27:35,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:27:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-10-19 23:27:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-19 23:27:35,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:35,773 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:35,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:27:35,774 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:35,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:35,775 INFO L82 PathProgramCache]: Analyzing trace with hash 194585064, now seen corresponding path program 1 times [2020-10-19 23:27:35,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:35,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668416750] [2020-10-19 23:27:35,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-19 23:27:36,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668416750] [2020-10-19 23:27:36,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614187693] [2020-10-19 23:27:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:36,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:27:36,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:27:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-19 23:27:36,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:27:36,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:27:36,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378937772] [2020-10-19 23:27:36,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:36,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:36,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:36,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:36,342 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-10-19 23:27:37,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:37,217 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2020-10-19 23:27:37,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:37,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-10-19 23:27:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:37,226 INFO L225 Difference]: With dead ends: 1252 [2020-10-19 23:27:37,227 INFO L226 Difference]: Without dead ends: 1250 [2020-10-19 23:27:37,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:37,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-19 23:27:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2020-10-19 23:27:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-19 23:27:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-10-19 23:27:37,264 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 170 [2020-10-19 23:27:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:37,265 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-10-19 23:27:37,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-10-19 23:27:37,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-19 23:27:37,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:37,272 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:37,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 23:27:37,490 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:37,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:37,490 INFO L82 PathProgramCache]: Analyzing trace with hash 401745846, now seen corresponding path program 1 times [2020-10-19 23:27:37,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:37,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722464199] [2020-10-19 23:27:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-19 23:27:37,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722464199] [2020-10-19 23:27:37,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:37,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:37,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961897211] [2020-10-19 23:27:37,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:27:37,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:37,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:27:37,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:27:37,701 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-10-19 23:27:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:39,064 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-10-19 23:27:39,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:27:39,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2020-10-19 23:27:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:39,074 INFO L225 Difference]: With dead ends: 1993 [2020-10-19 23:27:39,075 INFO L226 Difference]: Without dead ends: 1072 [2020-10-19 23:27:39,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:27:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-19 23:27:39,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-10-19 23:27:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-19 23:27:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-10-19 23:27:39,102 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 224 [2020-10-19 23:27:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:39,103 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-10-19 23:27:39,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:27:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-10-19 23:27:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-19 23:27:39,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:39,108 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:39,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:27:39,109 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:39,110 INFO L82 PathProgramCache]: Analyzing trace with hash 236138806, now seen corresponding path program 1 times [2020-10-19 23:27:39,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:39,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241893834] [2020-10-19 23:27:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:27:39,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241893834] [2020-10-19 23:27:39,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114544311] [2020-10-19 23:27:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:39,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:27:39,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:27:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-19 23:27:39,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:27:39,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 23:27:39,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520443851] [2020-10-19 23:27:39,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:39,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:39,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:39,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:27:39,600 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-10-19 23:27:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:40,351 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2020-10-19 23:27:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:40,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-10-19 23:27:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:40,359 INFO L225 Difference]: With dead ends: 2320 [2020-10-19 23:27:40,359 INFO L226 Difference]: Without dead ends: 1250 [2020-10-19 23:27:40,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:27:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-19 23:27:40,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-10-19 23:27:40,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-19 23:27:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-10-19 23:27:40,385 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 236 [2020-10-19 23:27:40,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:40,385 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-10-19 23:27:40,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-10-19 23:27:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-19 23:27:40,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:40,389 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:40,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:40,603 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:40,603 INFO L82 PathProgramCache]: Analyzing trace with hash -691544289, now seen corresponding path program 1 times [2020-10-19 23:27:40,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:40,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498366883] [2020-10-19 23:27:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:27:40,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498366883] [2020-10-19 23:27:40,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:40,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:40,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399953466] [2020-10-19 23:27:40,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:40,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:40,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:40,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:40,776 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-10-19 23:27:41,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:41,747 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2020-10-19 23:27:41,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:41,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-10-19 23:27:41,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:41,757 INFO L225 Difference]: With dead ends: 2854 [2020-10-19 23:27:41,758 INFO L226 Difference]: Without dead ends: 1784 [2020-10-19 23:27:41,760 INFO L677 BasicCegarLoop]: 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 [2020-10-19 23:27:41,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-10-19 23:27:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2020-10-19 23:27:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-19 23:27:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2020-10-19 23:27:41,800 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 239 [2020-10-19 23:27:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:41,800 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2020-10-19 23:27:41,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2020-10-19 23:27:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-19 23:27:41,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:41,807 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:41,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:27:41,808 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:41,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1473681241, now seen corresponding path program 1 times [2020-10-19 23:27:41,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:41,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14488437] [2020-10-19 23:27:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-19 23:27:42,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14488437] [2020-10-19 23:27:42,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:42,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:42,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505117854] [2020-10-19 23:27:42,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:27:42,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:42,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:27:42,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:27:42,212 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand 4 states. [2020-10-19 23:27:43,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:43,114 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2020-10-19 23:27:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:27:43,115 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 356 [2020-10-19 23:27:43,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:43,125 INFO L225 Difference]: With dead ends: 3624 [2020-10-19 23:27:43,125 INFO L226 Difference]: Without dead ends: 1962 [2020-10-19 23:27:43,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:27:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-19 23:27:43,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-10-19 23:27:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-19 23:27:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2020-10-19 23:27:43,170 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 356 [2020-10-19 23:27:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:43,171 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2020-10-19 23:27:43,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:27:43,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2020-10-19 23:27:43,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-10-19 23:27:43,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:43,181 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:43,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:27:43,181 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:43,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:43,182 INFO L82 PathProgramCache]: Analyzing trace with hash 226980639, now seen corresponding path program 1 times [2020-10-19 23:27:43,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:43,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449986907] [2020-10-19 23:27:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:27:43,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449986907] [2020-10-19 23:27:43,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:43,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:43,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081573112] [2020-10-19 23:27:43,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:43,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:43,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:43,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:43,588 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand 3 states. [2020-10-19 23:27:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:44,373 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2020-10-19 23:27:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:44,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 451 [2020-10-19 23:27:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:44,388 INFO L225 Difference]: With dead ends: 4278 [2020-10-19 23:27:44,388 INFO L226 Difference]: Without dead ends: 2674 [2020-10-19 23:27:44,391 INFO L677 BasicCegarLoop]: 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 [2020-10-19 23:27:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-19 23:27:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2020-10-19 23:27:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-10-19 23:27:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2020-10-19 23:27:44,451 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 451 [2020-10-19 23:27:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:44,452 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2020-10-19 23:27:44,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2020-10-19 23:27:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-10-19 23:27:44,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:44,466 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:44,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:27:44,467 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:44,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:44,468 INFO L82 PathProgramCache]: Analyzing trace with hash 443369256, now seen corresponding path program 1 times [2020-10-19 23:27:44,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:44,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987722637] [2020-10-19 23:27:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:27:44,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987722637] [2020-10-19 23:27:44,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:44,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:44,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887111941] [2020-10-19 23:27:44,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:44,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:44,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:44,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:44,927 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand 3 states. [2020-10-19 23:27:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:45,688 INFO L93 Difference]: Finished difference Result 4634 states and 5045 transitions. [2020-10-19 23:27:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:45,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 458 [2020-10-19 23:27:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:45,701 INFO L225 Difference]: With dead ends: 4634 [2020-10-19 23:27:45,702 INFO L226 Difference]: Without dead ends: 2674 [2020-10-19 23:27:45,705 INFO L677 BasicCegarLoop]: 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 [2020-10-19 23:27:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-19 23:27:45,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-19 23:27:45,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-19 23:27:45,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2662 transitions. [2020-10-19 23:27:45,758 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2662 transitions. Word has length 458 [2020-10-19 23:27:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:45,759 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2662 transitions. [2020-10-19 23:27:45,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2662 transitions. [2020-10-19 23:27:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2020-10-19 23:27:45,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:45,775 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:45,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:27:45,776 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:45,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:45,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1108606264, now seen corresponding path program 1 times [2020-10-19 23:27:45,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:45,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887181004] [2020-10-19 23:27:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 589 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-19 23:27:46,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887181004] [2020-10-19 23:27:46,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:46,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:46,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245441281] [2020-10-19 23:27:46,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:46,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:46,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:46,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:46,315 INFO L87 Difference]: Start difference. First operand 2496 states and 2662 transitions. Second operand 3 states. [2020-10-19 23:27:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:47,157 INFO L93 Difference]: Finished difference Result 5524 states and 5973 transitions. [2020-10-19 23:27:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:47,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 613 [2020-10-19 23:27:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:47,174 INFO L225 Difference]: With dead ends: 5524 [2020-10-19 23:27:47,174 INFO L226 Difference]: Without dead ends: 3208 [2020-10-19 23:27:47,178 INFO L677 BasicCegarLoop]: 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 [2020-10-19 23:27:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-19 23:27:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-10-19 23:27:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-19 23:27:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3228 transitions. [2020-10-19 23:27:47,244 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3228 transitions. Word has length 613 [2020-10-19 23:27:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:47,245 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3228 transitions. [2020-10-19 23:27:47,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3228 transitions. [2020-10-19 23:27:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2020-10-19 23:27:47,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:47,252 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:47,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:27:47,253 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:47,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:47,253 INFO L82 PathProgramCache]: Analyzing trace with hash 322501083, now seen corresponding path program 1 times [2020-10-19 23:27:47,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:47,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147441862] [2020-10-19 23:27:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 849 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-19 23:27:48,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147441862] [2020-10-19 23:27:48,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:27:48,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:27:48,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696515865] [2020-10-19 23:27:48,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:48,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:48,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:27:48,085 INFO L87 Difference]: Start difference. First operand 3030 states and 3228 transitions. Second operand 3 states. [2020-10-19 23:27:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:48,835 INFO L93 Difference]: Finished difference Result 6592 states and 7097 transitions. [2020-10-19 23:27:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:48,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 631 [2020-10-19 23:27:48,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:48,855 INFO L225 Difference]: With dead ends: 6592 [2020-10-19 23:27:48,855 INFO L226 Difference]: Without dead ends: 3742 [2020-10-19 23:27:48,860 INFO L677 BasicCegarLoop]: 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 [2020-10-19 23:27:48,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-19 23:27:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2020-10-19 23:27:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:27:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3621 transitions. [2020-10-19 23:27:48,930 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3621 transitions. Word has length 631 [2020-10-19 23:27:48,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:48,932 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3621 transitions. [2020-10-19 23:27:48,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3621 transitions. [2020-10-19 23:27:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-10-19 23:27:48,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:48,940 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:48,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:27:48,940 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:48,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:48,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2018449179, now seen corresponding path program 1 times [2020-10-19 23:27:48,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:48,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773551202] [2020-10-19 23:27:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 957 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:27:49,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773551202] [2020-10-19 23:27:49,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180895240] [2020-10-19 23:27:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:49,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:27:49,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:27:50,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-10-19 23:27:50,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:27:50,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:27:50,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488564671] [2020-10-19 23:27:50,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:50,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:50,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:50,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:50,206 INFO L87 Difference]: Start difference. First operand 3386 states and 3621 transitions. Second operand 3 states. [2020-10-19 23:27:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:50,930 INFO L93 Difference]: Finished difference Result 7304 states and 7883 transitions. [2020-10-19 23:27:50,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:50,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 654 [2020-10-19 23:27:50,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:50,952 INFO L225 Difference]: With dead ends: 7304 [2020-10-19 23:27:50,952 INFO L226 Difference]: Without dead ends: 4098 [2020-10-19 23:27:50,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:50,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-19 23:27:51,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-10-19 23:27:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-10-19 23:27:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4192 transitions. [2020-10-19 23:27:51,037 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4192 transitions. Word has length 654 [2020-10-19 23:27:51,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:51,038 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4192 transitions. [2020-10-19 23:27:51,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:51,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4192 transitions. [2020-10-19 23:27:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-10-19 23:27:51,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:51,050 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:51,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-19 23:27:51,266 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:51,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1210498663, now seen corresponding path program 1 times [2020-10-19 23:27:51,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:51,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489616320] [2020-10-19 23:27:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 1369 proven. 155 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-19 23:27:52,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489616320] [2020-10-19 23:27:52,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903288997] [2020-10-19 23:27:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:52,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:27:52,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:27:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-19 23:27:52,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:27:52,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:27:52,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262623578] [2020-10-19 23:27:52,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:52,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:52,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:52,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:52,774 INFO L87 Difference]: Start difference. First operand 3920 states and 4192 transitions. Second operand 3 states. [2020-10-19 23:27:53,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:53,505 INFO L93 Difference]: Finished difference Result 5346 states and 5684 transitions. [2020-10-19 23:27:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:53,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 801 [2020-10-19 23:27:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:53,529 INFO L225 Difference]: With dead ends: 5346 [2020-10-19 23:27:53,529 INFO L226 Difference]: Without dead ends: 5344 [2020-10-19 23:27:53,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:53,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2020-10-19 23:27:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4098. [2020-10-19 23:27:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-10-19 23:27:53,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4374 transitions. [2020-10-19 23:27:53,610 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4374 transitions. Word has length 801 [2020-10-19 23:27:53,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:53,611 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4374 transitions. [2020-10-19 23:27:53,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4374 transitions. [2020-10-19 23:27:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2020-10-19 23:27:53,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:53,626 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:53,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:53,840 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:53,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:53,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1906340564, now seen corresponding path program 1 times [2020-10-19 23:27:53,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:53,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993344918] [2020-10-19 23:27:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1991 backedges. 1459 proven. 155 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2020-10-19 23:27:54,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993344918] [2020-10-19 23:27:54,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461609266] [2020-10-19 23:27:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:54,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:27:54,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:27:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1991 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2020-10-19 23:27:55,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:27:55,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:27:55,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139811749] [2020-10-19 23:27:55,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:55,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:55,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:55,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:55,290 INFO L87 Difference]: Start difference. First operand 4098 states and 4374 transitions. Second operand 3 states. [2020-10-19 23:27:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:27:56,081 INFO L93 Difference]: Finished difference Result 8906 states and 9534 transitions. [2020-10-19 23:27:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:27:56,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 819 [2020-10-19 23:27:56,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:27:56,093 INFO L225 Difference]: With dead ends: 8906 [2020-10-19 23:27:56,093 INFO L226 Difference]: Without dead ends: 4988 [2020-10-19 23:27:56,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 819 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:27:56,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-19 23:27:56,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4632. [2020-10-19 23:27:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-10-19 23:27:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4940 transitions. [2020-10-19 23:27:56,176 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4940 transitions. Word has length 819 [2020-10-19 23:27:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:27:56,177 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4940 transitions. [2020-10-19 23:27:56,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:27:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4940 transitions. [2020-10-19 23:27:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2020-10-19 23:27:56,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:27:56,193 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:27:56,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-19 23:27:56,407 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:27:56,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:27:56,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1048080930, now seen corresponding path program 1 times [2020-10-19 23:27:56,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:27:56,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005300715] [2020-10-19 23:27:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:27:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2840 backedges. 1280 proven. 642 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2020-10-19 23:27:58,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005300715] [2020-10-19 23:27:58,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212071173] [2020-10-19 23:27:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:27:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:27:59,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:27:59,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:27:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 2400 trivial. 0 not checked. [2020-10-19 23:27:59,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:27:59,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-19 23:27:59,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424445976] [2020-10-19 23:27:59,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:27:59,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:27:59,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:27:59,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:27:59,697 INFO L87 Difference]: Start difference. First operand 4632 states and 4940 transitions. Second operand 3 states. [2020-10-19 23:28:00,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:00,482 INFO L93 Difference]: Finished difference Result 9260 states and 9877 transitions. [2020-10-19 23:28:00,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:00,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 986 [2020-10-19 23:28:00,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:00,483 INFO L225 Difference]: With dead ends: 9260 [2020-10-19 23:28:00,484 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:28:00,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 985 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:28:00,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:28:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:28:00,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:28:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:28:00,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 986 [2020-10-19 23:28:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:00,493 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:28:00,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:28:00,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:28:00,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:00,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:28:01,058 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2020-10-19 23:28:01,314 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2020-10-19 23:28:01,320 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-19 23:28:01,321 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:28:01,321 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:28:01,321 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:28:01,321 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-19 23:28:01,321 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-19 23:28:01,322 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-19 23:28:01,322 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,322 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,323 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,323 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-19 23:28:01,323 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:28:01,323 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:28:01,324 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:28:01,324 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-19 23:28:01,324 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-19 23:28:01,324 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-19 23:28:01,324 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-19 23:28:01,325 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,325 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,325 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,325 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-19 23:28:01,326 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-19 23:28:01,326 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:28:01,326 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:28:01,327 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:28:01,327 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-19 23:28:01,327 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-19 23:28:01,327 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-19 23:28:01,327 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,328 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,328 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,328 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-19 23:28:01,328 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:28:01,328 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:28:01,329 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:28:01,329 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-19 23:28:01,329 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-19 23:28:01,329 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-19 23:28:01,330 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-19 23:28:01,330 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-19 23:28:01,330 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,330 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,331 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,331 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-19 23:28:01,331 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:28:01,331 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:28:01,331 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:28:01,332 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-19 23:28:01,332 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-19 23:28:01,332 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-19 23:28:01,332 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,333 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,333 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,333 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-19 23:28:01,333 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:28:01,334 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:28:01,334 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:28:01,334 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-19 23:28:01,334 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-19 23:28:01,335 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-19 23:28:01,335 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-19 23:28:01,335 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-19 23:28:01,335 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,336 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,336 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,336 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-19 23:28:01,336 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:28:01,337 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:28:01,337 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:28:01,337 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-19 23:28:01,337 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-19 23:28:01,337 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-19 23:28:01,338 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-19 23:28:01,338 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,338 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,338 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,338 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:28:01,338 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:28:01,339 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:28:01,339 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-19 23:28:01,339 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-19 23:28:01,339 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-19 23:28:01,339 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:28:01,340 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-19 23:28:01,340 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-19 23:28:01,340 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,340 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,341 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,341 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-19 23:28:01,341 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-19 23:28:01,341 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:28:01,341 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:28:01,342 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:28:01,342 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-19 23:28:01,342 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-19 23:28:01,342 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-19 23:28:01,343 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,343 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,343 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,343 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:28:01,344 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:28:01,344 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:28:01,344 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-19 23:28:01,345 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-19 23:28:01,345 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-19 23:28:01,345 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-19 23:28:01,345 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-19 23:28:01,346 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,346 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,346 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,346 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:28:01,347 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:28:01,347 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-19 23:28:01,347 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-19 23:28:01,347 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:28:01,348 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:28:01,348 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:28:01,348 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-19 23:28:01,348 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-19 23:28:01,349 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-19 23:28:01,349 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,349 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,349 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,350 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-19 23:28:01,350 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:28:01,350 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:28:01,350 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:28:01,351 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-19 23:28:01,351 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-19 23:28:01,351 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:28:01,351 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-19 23:28:01,352 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-19 23:28:01,352 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,352 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,352 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,352 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-19 23:28:01,353 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:28:01,353 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:28:01,353 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:28:01,353 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-19 23:28:01,353 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-19 23:28:01,353 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-19 23:28:01,354 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-19 23:28:01,354 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,354 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,354 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-19 23:28:01,354 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:28:01,355 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:28:01,355 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-19 23:28:01,355 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-19 23:28:01,355 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-19 23:28:01,355 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-19 23:28:01,355 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-19 23:28:01,356 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,356 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,356 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-19 23:28:01,356 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:28:01,356 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:28:01,357 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-19 23:28:01,357 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-19 23:28:01,357 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-19 23:28:01,357 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,357 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,358 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and .cse1 .cse2 (<= 10 ~a21~0)) (and .cse0 (<= ~a12~0 80)) (and (<= 8 ~a21~0) .cse0) (and .cse0 .cse3) (and .cse1 .cse2 .cse3))) [2020-10-19 23:28:01,358 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-19 23:28:01,358 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-19 23:28:01,359 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:28:01,359 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:28:01,359 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-19 23:28:01,359 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-19 23:28:01,359 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-19 23:28:01,360 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-19 23:28:01,360 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,360 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,360 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-19 23:28:01,360 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-19 23:28:01,360 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-19 23:28:01,361 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:28:01,361 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:28:01,361 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-19 23:28:01,361 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-19 23:28:01,361 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-19 23:28:01,362 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:28:01,362 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,362 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,362 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-19 23:28:01,362 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-19 23:28:01,362 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:28:01,363 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:28:01,363 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-19 23:28:01,363 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-19 23:28:01,363 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,364 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,364 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:28:01,364 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,364 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-19 23:28:01,365 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= (+ ~a12~0 49) 0)) (.cse2 (<= ~a15~0 8)) (.cse3 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and .cse1 .cse2 (<= 10 ~a21~0)) (and .cse0 (<= ~a12~0 80)) (and (<= 8 ~a21~0) .cse0) (and .cse0 .cse3) (and .cse1 .cse2 .cse3))) [2020-10-19 23:28:01,365 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-19 23:28:01,365 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-19 23:28:01,365 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:28:01,365 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:28:01,366 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:28:01,366 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-19 23:28:01,366 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-19 23:28:01,367 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-19 23:28:01,367 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-19 23:28:01,367 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,367 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,368 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,368 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-19 23:28:01,368 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:28:01,368 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:28:01,369 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:28:01,369 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-19 23:28:01,369 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:28:01,369 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-19 23:28:01,370 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-19 23:28:01,370 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-19 23:28:01,370 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-19 23:28:01,371 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,371 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,371 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,371 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-19 23:28:01,372 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-19 23:28:01,372 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:28:01,372 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:28:01,372 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:28:01,373 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-19 23:28:01,373 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-19 23:28:01,373 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-19 23:28:01,373 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,374 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,374 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,374 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-19 23:28:01,374 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:28:01,375 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:28:01,375 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:28:01,375 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-19 23:28:01,375 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-19 23:28:01,375 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-19 23:28:01,376 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-19 23:28:01,376 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-19 23:28:01,376 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,376 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,377 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:01,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:28:01 BoogieIcfgContainer [2020-10-19 23:28:01,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:28:01,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:28:01,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:28:01,410 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:28:01,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:27:31" (3/4) ... [2020-10-19 23:28:01,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:28:01,448 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:28:01,451 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:28:01,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:28:01,456 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:28:01,711 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:28:01,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:28:01,712 INFO L168 Benchmark]: Toolchain (without parser) took 32846.64 ms. Allocated memory was 37.2 MB in the beginning and 700.4 MB in the end (delta: 663.2 MB). Free memory was 10.8 MB in the beginning and 79.8 MB in the end (delta: -69.0 MB). Peak memory consumption was 594.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,713 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 37.2 MB. Free memory is still 16.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-19 23:28:01,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.09 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 10.0 MB in the beginning and 18.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.82 ms. Allocated memory is still 47.2 MB. Free memory was 18.3 MB in the beginning and 23.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,714 INFO L168 Benchmark]: Boogie Preprocessor took 104.62 ms. Allocated memory is still 47.2 MB. Free memory was 23.1 MB in the beginning and 16.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,714 INFO L168 Benchmark]: RCFGBuilder took 1939.54 ms. Allocated memory was 47.2 MB in the beginning and 68.2 MB in the end (delta: 21.0 MB). Free memory was 16.3 MB in the beginning and 42.0 MB in the end (delta: -25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,714 INFO L168 Benchmark]: TraceAbstraction took 29511.65 ms. Allocated memory was 68.2 MB in the beginning and 700.4 MB in the end (delta: 632.3 MB). Free memory was 41.5 MB in the beginning and 104.5 MB in the end (delta: -63.0 MB). Peak memory consumption was 569.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,715 INFO L168 Benchmark]: Witness Printer took 301.67 ms. Allocated memory is still 700.4 MB. Free memory was 104.5 MB in the beginning and 79.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:01,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 37.2 MB. Free memory is still 16.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 819.09 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 10.0 MB in the beginning and 18.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 158.82 ms. Allocated memory is still 47.2 MB. Free memory was 18.3 MB in the beginning and 23.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 104.62 ms. Allocated memory is still 47.2 MB. Free memory was 23.1 MB in the beginning and 16.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1939.54 ms. Allocated memory was 47.2 MB in the beginning and 68.2 MB in the end (delta: 21.0 MB). Free memory was 16.3 MB in the beginning and 42.0 MB in the end (delta: -25.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 29511.65 ms. Allocated memory was 68.2 MB in the beginning and 700.4 MB in the end (delta: 632.3 MB). Free memory was 41.5 MB in the beginning and 104.5 MB in the end (delta: -63.0 MB). Peak memory consumption was 569.3 MB. Max. memory is 14.3 GB. * Witness Printer took 301.67 ms. Allocated memory is still 700.4 MB. Free memory was 104.5 MB in the beginning and 79.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((7 <= a15 && a24 == 1) || ((a12 + 49 <= 0 && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a12 <= 80)) || (8 <= a21 && a24 == 1)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a15 <= 8) && a21 <= 6) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((7 <= a15 && a24 == 1) || ((a12 + 49 <= 0 && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a12 <= 80)) || (8 <= a21 && a24 == 1)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a15 <= 8) && a21 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.7s, OverallIterations: 15, TraceHistogramMax: 8, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1988 SDtfs, 1946 SDslu, 81 SDs, 0 SdLazy, 7729 SolverSat, 940 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3712 GetRequests, 3677 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4632occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 3738 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 65 NumberOfFragments, 107 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3578 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 518 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 10513 NumberOfCodeBlocks, 10513 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 10492 ConstructedInterpolants, 0 QuantifiedInterpolants, 16977933 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4681 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 21 InterpolantComputations, 15 PerfectInterpolantSequences, 20456/21633 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 correct! Received shutdown request...