./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label23.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/Problem10_label23.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 7c11f213dd4563d2f887426e1fb15f3a6ccc2c98 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:09:59,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:09:59,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:09:59,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:09:59,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:09:59,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:09:59,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:09:59,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:09:59,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:09:59,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:09:59,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:09:59,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:09:59,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:09:59,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:09:59,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:09:59,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:09:59,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:09:59,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:09:59,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:09:59,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:09:59,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:09:59,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:09:59,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:09:59,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:09:59,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:09:59,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:09:59,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:09:59,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:09:59,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:09:59,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:09:59,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:09:59,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:09:59,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:09:59,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:09:59,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:09:59,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:09:59,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:09:59,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:09:59,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:09:59,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:09:59,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:09:59,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:09:59,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:09:59,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:09:59,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:09:59,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:09:59,361 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:09:59,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:09:59,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:09:59,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:09:59,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:09:59,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:09:59,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:09:59,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:09:59,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:09:59,363 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:09:59,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:09:59,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:09:59,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:09:59,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:09:59,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:09:59,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:09:59,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:09:59,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:09:59,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:09:59,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:09:59,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:09:59,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:09:59,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:09:59,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:09:59,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:09:59,366 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 -> 7c11f213dd4563d2f887426e1fb15f3a6ccc2c98 [2020-10-19 23:09:59,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:09:59,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:09:59,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:09:59,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:09:59,597 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:09:59,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2020-10-19 23:09:59,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c990e554d/6804914348bb4312867e83042d774b38/FLAG3a64a2474 [2020-10-19 23:10:00,252 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:10:00,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label23.c [2020-10-19 23:10:00,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c990e554d/6804914348bb4312867e83042d774b38/FLAG3a64a2474 [2020-10-19 23:10:00,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c990e554d/6804914348bb4312867e83042d774b38 [2020-10-19 23:10:00,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:10:00,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:10:00,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:00,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:10:00,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:10:00,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:00" (1/1) ... [2020-10-19 23:10:00,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cc14f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:00, skipping insertion in model container [2020-10-19 23:10:00,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:00" (1/1) ... [2020-10-19 23:10:00,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:10:00,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:10:01,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:01,155 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:10:01,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:01,315 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:10:01,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01 WrapperNode [2020-10-19 23:10:01,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:01,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:01,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:10:01,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:10:01,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:01,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:10:01,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:10:01,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:10:01,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (1/1) ... [2020-10-19 23:10:01,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:10:01,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:10:01,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:10:01,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:10:01,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (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 23:10:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:10:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:10:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:10:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:10:03,280 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:10:03,280 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:10:03,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:03 BoogieIcfgContainer [2020-10-19 23:10:03,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:10:03,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:10:03,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:10:03,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:10:03,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:10:00" (1/3) ... [2020-10-19 23:10:03,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c796a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:03, skipping insertion in model container [2020-10-19 23:10:03,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:01" (2/3) ... [2020-10-19 23:10:03,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c796a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:03, skipping insertion in model container [2020-10-19 23:10:03,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:03" (3/3) ... [2020-10-19 23:10:03,293 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label23.c [2020-10-19 23:10:03,305 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:10:03,313 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:10:03,328 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:10:03,358 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:10:03,359 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:10:03,359 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:10:03,359 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:10:03,360 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:10:03,361 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:10:03,361 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:10:03,361 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:10:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:10:03,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-19 23:10:03,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:03,396 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] [2020-10-19 23:10:03,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:03,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:03,403 INFO L82 PathProgramCache]: Analyzing trace with hash 291089130, now seen corresponding path program 1 times [2020-10-19 23:10:03,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:03,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494098899] [2020-10-19 23:10:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:03,780 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 23:10:03,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494098899] [2020-10-19 23:10:03,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:03,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:03,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118324179] [2020-10-19 23:10:03,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:03,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:03,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:03,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:03,807 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:10:05,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:05,077 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-10-19 23:10:05,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:05,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-19 23:10:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:05,095 INFO L225 Difference]: With dead ends: 568 [2020-10-19 23:10:05,095 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:10:05,100 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 23:10:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:10:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:10:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:10:05,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-19 23:10:05,177 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 46 [2020-10-19 23:10:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:05,177 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-19 23:10:05,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:05,178 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-19 23:10:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-19 23:10:05,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:05,187 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, 1, 1, 1, 1, 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 23:10:05,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:10:05,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:05,188 INFO L82 PathProgramCache]: Analyzing trace with hash -62250986, now seen corresponding path program 1 times [2020-10-19 23:10:05,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:05,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618193701] [2020-10-19 23:10:05,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-19 23:10:05,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618193701] [2020-10-19 23:10:05,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857683892] [2020-10-19 23:10:05,458 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 23:10:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:05,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:05,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:05,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:05,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 23:10:05,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389020116] [2020-10-19 23:10:05,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:05,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:05,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:05,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:05,638 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-19 23:10:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:06,379 INFO L93 Difference]: Finished difference Result 840 states and 1291 transitions. [2020-10-19 23:10:06,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:06,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-19 23:10:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:06,385 INFO L225 Difference]: With dead ends: 840 [2020-10-19 23:10:06,386 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:10:06,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:10:06,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-10-19 23:10:06,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:10:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 770 transitions. [2020-10-19 23:10:06,427 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 770 transitions. Word has length 112 [2020-10-19 23:10:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:06,428 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 770 transitions. [2020-10-19 23:10:06,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 770 transitions. [2020-10-19 23:10:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-19 23:10:06,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:06,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:06,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-19 23:10:06,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:06,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:06,640 INFO L82 PathProgramCache]: Analyzing trace with hash -250269727, now seen corresponding path program 1 times [2020-10-19 23:10:06,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:06,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945556177] [2020-10-19 23:10:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:06,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945556177] [2020-10-19 23:10:06,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:06,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:06,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448486702] [2020-10-19 23:10:06,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:06,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:06,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:06,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:06,774 INFO L87 Difference]: Start difference. First operand 560 states and 770 transitions. Second operand 3 states. [2020-10-19 23:10:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:07,484 INFO L93 Difference]: Finished difference Result 1396 states and 1967 transitions. [2020-10-19 23:10:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:07,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-10-19 23:10:07,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:07,494 INFO L225 Difference]: With dead ends: 1396 [2020-10-19 23:10:07,494 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:10:07,496 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 23:10:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:10:07,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 560. [2020-10-19 23:10:07,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:10:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 760 transitions. [2020-10-19 23:10:07,532 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 760 transitions. Word has length 123 [2020-10-19 23:10:07,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:07,533 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 760 transitions. [2020-10-19 23:10:07,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:07,534 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 760 transitions. [2020-10-19 23:10:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-19 23:10:07,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:07,541 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, 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] [2020-10-19 23:10:07,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:10:07,542 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:07,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1657704476, now seen corresponding path program 1 times [2020-10-19 23:10:07,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:07,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025309217] [2020-10-19 23:10:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:07,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025309217] [2020-10-19 23:10:07,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:07,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:07,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535012351] [2020-10-19 23:10:07,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:07,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:07,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:07,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:07,759 INFO L87 Difference]: Start difference. First operand 560 states and 760 transitions. Second operand 3 states. [2020-10-19 23:10:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:08,331 INFO L93 Difference]: Finished difference Result 1257 states and 1687 transitions. [2020-10-19 23:10:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:08,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-10-19 23:10:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:08,335 INFO L225 Difference]: With dead ends: 1257 [2020-10-19 23:10:08,336 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:10:08,336 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 23:10:08,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:10:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:10:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 909 transitions. [2020-10-19 23:10:08,354 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 909 transitions. Word has length 190 [2020-10-19 23:10:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:08,355 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 909 transitions. [2020-10-19 23:10:08,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 909 transitions. [2020-10-19 23:10:08,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-19 23:10:08,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:08,359 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, 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] [2020-10-19 23:10:08,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:10:08,360 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:08,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:08,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1314659577, now seen corresponding path program 1 times [2020-10-19 23:10:08,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:08,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347328919] [2020-10-19 23:10:08,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-19 23:10:08,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347328919] [2020-10-19 23:10:08,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:08,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:08,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724633625] [2020-10-19 23:10:08,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:08,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:08,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:08,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:08,510 INFO L87 Difference]: Start difference. First operand 699 states and 909 transitions. Second operand 3 states. [2020-10-19 23:10:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:09,144 INFO L93 Difference]: Finished difference Result 1535 states and 1975 transitions. [2020-10-19 23:10:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:09,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-10-19 23:10:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:09,151 INFO L225 Difference]: With dead ends: 1535 [2020-10-19 23:10:09,152 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:10:09,154 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 23:10:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:10:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:10:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:10:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1058 transitions. [2020-10-19 23:10:09,193 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1058 transitions. Word has length 197 [2020-10-19 23:10:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:09,193 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1058 transitions. [2020-10-19 23:10:09,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:09,194 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1058 transitions. [2020-10-19 23:10:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-19 23:10:09,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:09,198 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, 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] [2020-10-19 23:10:09,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:10:09,199 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:09,199 INFO L82 PathProgramCache]: Analyzing trace with hash 919390388, now seen corresponding path program 1 times [2020-10-19 23:10:09,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:09,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560634996] [2020-10-19 23:10:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:09,632 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:09,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560634996] [2020-10-19 23:10:09,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:09,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:10:09,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224430770] [2020-10-19 23:10:09,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:10:09,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:09,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:10:09,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:09,636 INFO L87 Difference]: Start difference. First operand 838 states and 1058 transitions. Second operand 7 states. [2020-10-19 23:10:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:10,198 INFO L93 Difference]: Finished difference Result 1590 states and 2020 transitions. [2020-10-19 23:10:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:10:10,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-10-19 23:10:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:10,210 INFO L225 Difference]: With dead ends: 1590 [2020-10-19 23:10:10,211 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:10:10,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:10:10,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:10:10,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:10:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1054 transitions. [2020-10-19 23:10:10,230 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1054 transitions. Word has length 199 [2020-10-19 23:10:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:10,231 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1054 transitions. [2020-10-19 23:10:10,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:10:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1054 transitions. [2020-10-19 23:10:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-19 23:10:10,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:10,235 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, 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] [2020-10-19 23:10:10,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:10:10,244 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:10,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1711634060, now seen corresponding path program 1 times [2020-10-19 23:10:10,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:10,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348823622] [2020-10-19 23:10:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-19 23:10:10,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348823622] [2020-10-19 23:10:10,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:10,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:10,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046225828] [2020-10-19 23:10:10,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:10,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:10,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:10,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:10,449 INFO L87 Difference]: Start difference. First operand 838 states and 1054 transitions. Second operand 3 states. [2020-10-19 23:10:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:11,157 INFO L93 Difference]: Finished difference Result 1952 states and 2543 transitions. [2020-10-19 23:10:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:11,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-10-19 23:10:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:11,166 INFO L225 Difference]: With dead ends: 1952 [2020-10-19 23:10:11,168 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:11,170 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 23:10:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-19 23:10:11,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1574 transitions. [2020-10-19 23:10:11,197 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1574 transitions. Word has length 215 [2020-10-19 23:10:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:11,198 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1574 transitions. [2020-10-19 23:10:11,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:11,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1574 transitions. [2020-10-19 23:10:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-19 23:10:11,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:11,203 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, 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] [2020-10-19 23:10:11,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:10:11,203 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:11,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:11,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1784322010, now seen corresponding path program 1 times [2020-10-19 23:10:11,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:11,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14871742] [2020-10-19 23:10:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:11,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14871742] [2020-10-19 23:10:11,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:11,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:11,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451399246] [2020-10-19 23:10:11,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:11,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:11,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:11,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:11,405 INFO L87 Difference]: Start difference. First operand 1255 states and 1574 transitions. Second operand 3 states. [2020-10-19 23:10:12,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:12,185 INFO L93 Difference]: Finished difference Result 2369 states and 3003 transitions. [2020-10-19 23:10:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:12,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-10-19 23:10:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:12,195 INFO L225 Difference]: With dead ends: 2369 [2020-10-19 23:10:12,195 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:12,197 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 23:10:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:12,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-19 23:10:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1428 transitions. [2020-10-19 23:10:12,232 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1428 transitions. Word has length 235 [2020-10-19 23:10:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:12,233 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1428 transitions. [2020-10-19 23:10:12,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1428 transitions. [2020-10-19 23:10:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-19 23:10:12,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:12,240 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, 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] [2020-10-19 23:10:12,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:10:12,241 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:12,241 INFO L82 PathProgramCache]: Analyzing trace with hash -98818840, now seen corresponding path program 1 times [2020-10-19 23:10:12,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:12,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096767279] [2020-10-19 23:10:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-19 23:10:12,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096767279] [2020-10-19 23:10:12,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:12,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:12,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290418943] [2020-10-19 23:10:12,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:12,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:12,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:12,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:12,446 INFO L87 Difference]: Start difference. First operand 1255 states and 1428 transitions. Second operand 3 states. [2020-10-19 23:10:13,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:13,062 INFO L93 Difference]: Finished difference Result 2369 states and 2711 transitions. [2020-10-19 23:10:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:13,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-10-19 23:10:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:13,071 INFO L225 Difference]: With dead ends: 2369 [2020-10-19 23:10:13,071 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:13,074 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 23:10:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:13,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-10-19 23:10:13,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1229 transitions. [2020-10-19 23:10:13,099 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1229 transitions. Word has length 255 [2020-10-19 23:10:13,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:13,100 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1229 transitions. [2020-10-19 23:10:13,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:13,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1229 transitions. [2020-10-19 23:10:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-19 23:10:13,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:13,109 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:13,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:10:13,109 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:13,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1837986583, now seen corresponding path program 1 times [2020-10-19 23:10:13,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:13,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737475606] [2020-10-19 23:10:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-19 23:10:13,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737475606] [2020-10-19 23:10:13,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:13,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:13,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304108611] [2020-10-19 23:10:13,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:13,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:13,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:13,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:13,346 INFO L87 Difference]: Start difference. First operand 1116 states and 1229 transitions. Second operand 3 states. [2020-10-19 23:10:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:13,964 INFO L93 Difference]: Finished difference Result 2230 states and 2482 transitions. [2020-10-19 23:10:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:13,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-10-19 23:10:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:13,971 INFO L225 Difference]: With dead ends: 2230 [2020-10-19 23:10:13,972 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:13,974 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 23:10:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-19 23:10:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1383 transitions. [2020-10-19 23:10:14,006 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1383 transitions. Word has length 308 [2020-10-19 23:10:14,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:14,007 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1383 transitions. [2020-10-19 23:10:14,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:14,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1383 transitions. [2020-10-19 23:10:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-19 23:10:14,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:14,015 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:14,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:10:14,016 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:14,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:14,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1259190210, now seen corresponding path program 1 times [2020-10-19 23:10:14,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:14,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210650822] [2020-10-19 23:10:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-19 23:10:14,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210650822] [2020-10-19 23:10:14,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:14,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:14,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881939737] [2020-10-19 23:10:14,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:14,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:14,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:14,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:14,257 INFO L87 Difference]: Start difference. First operand 1255 states and 1383 transitions. Second operand 3 states. [2020-10-19 23:10:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:14,950 INFO L93 Difference]: Finished difference Result 2230 states and 2467 transitions. [2020-10-19 23:10:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:14,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 318 [2020-10-19 23:10:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:14,962 INFO L225 Difference]: With dead ends: 2230 [2020-10-19 23:10:14,963 INFO L226 Difference]: Without dead ends: 2228 [2020-10-19 23:10:14,964 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 23:10:14,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-10-19 23:10:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1255. [2020-10-19 23:10:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1383 transitions. [2020-10-19 23:10:14,999 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1383 transitions. Word has length 318 [2020-10-19 23:10:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:15,000 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1383 transitions. [2020-10-19 23:10:15,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1383 transitions. [2020-10-19 23:10:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-19 23:10:15,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:15,007 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, 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, 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] [2020-10-19 23:10:15,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:10:15,007 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:15,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1536206532, now seen corresponding path program 1 times [2020-10-19 23:10:15,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:15,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039509717] [2020-10-19 23:10:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2020-10-19 23:10:15,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039509717] [2020-10-19 23:10:15,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870354348] [2020-10-19 23:10:15,477 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 23:10:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:15,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:15,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2020-10-19 23:10:15,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:15,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:10:15,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190638380] [2020-10-19 23:10:15,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:15,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:15,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:15,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:15,928 INFO L87 Difference]: Start difference. First operand 1255 states and 1383 transitions. Second operand 3 states. [2020-10-19 23:10:16,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:16,566 INFO L93 Difference]: Finished difference Result 1950 states and 2157 transitions. [2020-10-19 23:10:16,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:16,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2020-10-19 23:10:16,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:16,568 INFO L225 Difference]: With dead ends: 1950 [2020-10-19 23:10:16,568 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:10:16,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 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 23:10:16,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:10:16,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:10:16,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:10:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:10:16,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354 [2020-10-19 23:10:16,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:16,574 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:10:16,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:10:16,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:10:16,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-19 23:10:16,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:10:16,991 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-10-19 23:10:17,115 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-10-19 23:10:17,119 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:10:17,120 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,121 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:10:17,122 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:10:17,123 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:10:17,124 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:10:17,125 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:10:17,126 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:10:17,126 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:10:17,126 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:10:17,126 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:10:17,126 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse2 (= ~a10~0 1)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 .cse1 (<= ~a19~0 9) (<= 2 ~a10~0)) (and (<= 0 (+ ~a1~0 12)) .cse2 .cse0 .cse1) (and .cse2 .cse0 (<= 9 ~a19~0) .cse1) (and .cse0 (= ~a10~0 0) .cse1))) [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,127 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:10:17,128 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,129 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:10:17,130 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:10:17,131 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:10:17,132 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:10:17,133 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:10:17,133 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (= ~a10~0 1)) (.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 .cse1 (<= ~a19~0 9) (<= 2 ~a10~0)) (and (<= 0 (+ ~a1~0 12)) .cse2 .cse0 .cse1) (and .cse2 .cse0 (<= 9 ~a19~0) .cse1) (and .cse0 (= ~a10~0 0) .cse1))) [2020-10-19 23:10:17,133 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:10:17,133 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,133 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,133 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,133 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:10:17,134 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,135 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:10:17,136 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:10:17,137 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,138 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:10:17,139 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:10:17,140 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:10:17,141 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,142 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,143 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:17,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:10:17 BoogieIcfgContainer [2020-10-19 23:10:17,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:10:17,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:10:17,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:10:17,165 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:10:17,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:03" (3/4) ... [2020-10-19 23:10:17,169 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:10:17,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:10:17,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:10:17,194 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:17,196 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:17,344 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:10:17,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:10:17,346 INFO L168 Benchmark]: Toolchain (without parser) took 16767.34 ms. Allocated memory was 35.1 MB in the beginning and 181.9 MB in the end (delta: 146.8 MB). Free memory was 10.6 MB in the beginning and 22.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 134.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,347 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 34.1 MB. Free memory was 19.1 MB in the beginning and 19.1 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.60 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 9.7 MB in the beginning and 19.3 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 205.18 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 19.3 MB in the beginning and 22.8 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,349 INFO L168 Benchmark]: Boogie Preprocessor took 103.55 ms. Allocated memory is still 44.6 MB. Free memory was 22.8 MB in the beginning and 17.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,349 INFO L168 Benchmark]: RCFGBuilder took 1656.72 ms. Allocated memory was 44.6 MB in the beginning and 58.2 MB in the end (delta: 13.6 MB). Free memory was 17.3 MB in the beginning and 29.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,350 INFO L168 Benchmark]: TraceAbstraction took 13880.08 ms. Allocated memory was 58.2 MB in the beginning and 181.9 MB in the end (delta: 123.7 MB). Free memory was 29.0 MB in the beginning and 42.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 110.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,350 INFO L168 Benchmark]: Witness Printer took 180.08 ms. Allocated memory is still 181.9 MB. Free memory was 42.2 MB in the beginning and 22.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:17,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 34.1 MB. Free memory was 19.1 MB in the beginning and 19.1 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 730.60 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 9.7 MB in the beginning and 19.3 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 205.18 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 19.3 MB in the beginning and 22.8 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 103.55 ms. Allocated memory is still 44.6 MB. Free memory was 22.8 MB in the beginning and 17.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1656.72 ms. Allocated memory was 44.6 MB in the beginning and 58.2 MB in the end (delta: 13.6 MB). Free memory was 17.3 MB in the beginning and 29.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 13880.08 ms. Allocated memory was 58.2 MB in the beginning and 181.9 MB in the end (delta: 123.7 MB). Free memory was 29.0 MB in the beginning and 42.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 110.5 MB. Max. memory is 14.3 GB. * Witness Printer took 180.08 ms. Allocated memory is still 181.9 MB. Free memory was 42.2 MB in the beginning and 22.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 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: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((14 == a4 && a12 == 0) && a19 <= 9) && 2 <= a10) || (((0 <= a1 + 12 && a10 == 1) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && 9 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((14 == a4 && a12 == 0) && a19 <= 9) && 2 <= a10) || (((0 <= a1 + 12 && a10 == 1) && 14 == a4) && a12 == 0)) || (((a10 == 1 && 14 == a4) && 9 <= a19) && a12 == 0)) || ((14 == a4 && a10 == 0) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.4s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1259 SDtfs, 1157 SDslu, 57 SDs, 0 SdLazy, 4525 SolverSat, 636 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1390 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 105 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1168 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 3018 NumberOfCodeBlocks, 3018 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3004 ConstructedInterpolants, 0 QuantifiedInterpolants, 2178874 SizeOfPredicates, 2 NumberOfNonLiveVariables, 698 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 2506/2606 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...