./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label39.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_label39.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 021a76f2cadfb9b62490f7e52769384378d05e7d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:10:27,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:10:27,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:10:27,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:10:27,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:10:27,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:10:27,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:10:27,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:10:27,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:10:27,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:10:27,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:10:27,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:10:27,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:10:27,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:10:27,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:10:27,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:10:27,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:10:27,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:10:27,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:10:27,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:10:27,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:10:27,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:10:27,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:10:27,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:10:27,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:10:27,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:10:27,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:10:27,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:10:27,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:10:27,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:10:27,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:10:27,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:10:27,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:10:27,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:10:27,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:10:27,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:10:27,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:10:27,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:10:27,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:10:27,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:10:27,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:10:27,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:10:27,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:10:27,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:10:27,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:10:27,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:10:27,493 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:10:27,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:10:27,493 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:10:27,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:10:27,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:10:27,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:10:27,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:10:27,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:10:27,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:10:27,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:10:27,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:10:27,497 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:10:27,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:10:27,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:10:27,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:10:27,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:10:27,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:10:27,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:27,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:10:27,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:10:27,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:10:27,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:10:27,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:10:27,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:10:27,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:10:27,500 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 -> 021a76f2cadfb9b62490f7e52769384378d05e7d [2020-10-19 23:10:27,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:10:27,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:10:27,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:10:27,724 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:10:27,725 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:10:27,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2020-10-19 23:10:27,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf14a23f/444b94cde8be4e36a7ac897024261ccf/FLAG2c616a11a [2020-10-19 23:10:28,336 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:10:28,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2020-10-19 23:10:28,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf14a23f/444b94cde8be4e36a7ac897024261ccf/FLAG2c616a11a [2020-10-19 23:10:28,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf14a23f/444b94cde8be4e36a7ac897024261ccf [2020-10-19 23:10:28,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:10:28,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:10:28,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:28,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:10:28,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:10:28,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:28" (1/1) ... [2020-10-19 23:10:28,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd65588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:28, skipping insertion in model container [2020-10-19 23:10:28,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:28" (1/1) ... [2020-10-19 23:10:28,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:10:28,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:10:29,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:29,208 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:10:29,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:29,390 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:10:29,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29 WrapperNode [2020-10-19 23:10:29,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:29,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:29,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:10:29,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:10:29,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:29,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:10:29,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:10:29,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:10:29,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... [2020-10-19 23:10:29,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:10:29,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:10:29,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:10:29,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:10:29,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:10:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:10:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:10:31,240 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:10:31,240 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:10:31,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:31 BoogieIcfgContainer [2020-10-19 23:10:31,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:10:31,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:10:31,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:10:31,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:10:31,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:10:28" (1/3) ... [2020-10-19 23:10:31,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7def83e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:31, skipping insertion in model container [2020-10-19 23:10:31,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:29" (2/3) ... [2020-10-19 23:10:31,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7def83e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:31, skipping insertion in model container [2020-10-19 23:10:31,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:31" (3/3) ... [2020-10-19 23:10:31,251 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-10-19 23:10:31,263 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:10:31,270 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:10:31,283 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:10:31,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:10:31,326 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:10:31,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:10:31,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:10:31,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:10:31,329 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:10:31,329 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:10:31,329 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:10:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:10:31,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 23:10:31,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:31,356 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] [2020-10-19 23:10:31,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:31,363 INFO L82 PathProgramCache]: Analyzing trace with hash 678582746, now seen corresponding path program 1 times [2020-10-19 23:10:31,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:31,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289050249] [2020-10-19 23:10:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:31,563 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 23:10:31,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289050249] [2020-10-19 23:10:31,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:31,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:31,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813184784] [2020-10-19 23:10:31,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:31,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:31,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:31,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:31,587 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:10:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:32,782 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-10-19 23:10:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:32,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-19 23:10:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:32,810 INFO L225 Difference]: With dead ends: 568 [2020-10-19 23:10:32,811 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:10:32,820 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 23:10:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:10:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:10:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:10:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-19 23:10:32,910 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 26 [2020-10-19 23:10:32,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:32,910 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-19 23:10:32,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:32,915 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-19 23:10:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-19 23:10:32,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:32,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:32,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:10:32,920 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:32,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:32,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1241978682, now seen corresponding path program 1 times [2020-10-19 23:10:32,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:32,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843870126] [2020-10-19 23:10:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:33,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843870126] [2020-10-19 23:10:33,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:33,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:33,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630502348] [2020-10-19 23:10:33,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:33,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:33,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:33,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:33,077 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-19 23:10:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:33,711 INFO L93 Difference]: Finished difference Result 840 states and 1291 transitions. [2020-10-19 23:10:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:33,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-10-19 23:10:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:33,718 INFO L225 Difference]: With dead ends: 840 [2020-10-19 23:10:33,718 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:10:33,719 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 23:10:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:10:33,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-10-19 23:10:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:10:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-10-19 23:10:33,744 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 92 [2020-10-19 23:10:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:33,744 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-10-19 23:10:33,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:33,745 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-10-19 23:10:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-19 23:10:33,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:33,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:33,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:10:33,749 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:33,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:33,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1929331611, now seen corresponding path program 1 times [2020-10-19 23:10:33,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:33,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533950112] [2020-10-19 23:10:33,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:33,935 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:33,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533950112] [2020-10-19 23:10:33,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:33,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:33,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486287893] [2020-10-19 23:10:33,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:33,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:33,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:33,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:33,939 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-10-19 23:10:34,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:34,600 INFO L93 Difference]: Finished difference Result 1257 states and 1672 transitions. [2020-10-19 23:10:34,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:34,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-10-19 23:10:34,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:34,606 INFO L225 Difference]: With dead ends: 1257 [2020-10-19 23:10:34,606 INFO L226 Difference]: Without dead ends: 699 [2020-10-19 23:10:34,607 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 23:10:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-19 23:10:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2020-10-19 23:10:34,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 904 transitions. [2020-10-19 23:10:34,633 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 904 transitions. Word has length 99 [2020-10-19 23:10:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:34,634 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 904 transitions. [2020-10-19 23:10:34,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 904 transitions. [2020-10-19 23:10:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-19 23:10:34,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:34,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:34,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:10:34,639 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:34,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1086251887, now seen corresponding path program 1 times [2020-10-19 23:10:34,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:34,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391783505] [2020-10-19 23:10:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:34,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391783505] [2020-10-19 23:10:34,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:34,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:34,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054901432] [2020-10-19 23:10:34,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:34,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:34,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:34,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:34,736 INFO L87 Difference]: Start difference. First operand 699 states and 904 transitions. Second operand 3 states. [2020-10-19 23:10:35,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:35,380 INFO L93 Difference]: Finished difference Result 1674 states and 2235 transitions. [2020-10-19 23:10:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:35,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-19 23:10:35,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:35,386 INFO L225 Difference]: With dead ends: 1674 [2020-10-19 23:10:35,386 INFO L226 Difference]: Without dead ends: 977 [2020-10-19 23:10:35,387 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 23:10:35,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-19 23:10:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-10-19 23:10:35,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-19 23:10:35,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1198 transitions. [2020-10-19 23:10:35,411 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1198 transitions. Word has length 103 [2020-10-19 23:10:35,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:35,412 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1198 transitions. [2020-10-19 23:10:35,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:35,412 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1198 transitions. [2020-10-19 23:10:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-19 23:10:35,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:35,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:35,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:10:35,417 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:35,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:35,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1863464712, now seen corresponding path program 1 times [2020-10-19 23:10:35,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:35,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516710925] [2020-10-19 23:10:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:35,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516710925] [2020-10-19 23:10:35,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:35,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:35,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775626464] [2020-10-19 23:10:35,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:35,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:35,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:35,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:35,516 INFO L87 Difference]: Start difference. First operand 977 states and 1198 transitions. Second operand 3 states. [2020-10-19 23:10:36,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:36,130 INFO L93 Difference]: Finished difference Result 2230 states and 2834 transitions. [2020-10-19 23:10:36,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:36,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-10-19 23:10:36,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:36,140 INFO L225 Difference]: With dead ends: 2230 [2020-10-19 23:10:36,140 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:10:36,142 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 23:10:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:10:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2020-10-19 23:10:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-10-19 23:10:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1712 transitions. [2020-10-19 23:10:36,178 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1712 transitions. Word has length 113 [2020-10-19 23:10:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:36,179 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1712 transitions. [2020-10-19 23:10:36,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1712 transitions. [2020-10-19 23:10:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-19 23:10:36,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:36,183 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:36,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:10:36,183 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:36,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1404134794, now seen corresponding path program 1 times [2020-10-19 23:10:36,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:36,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617039372] [2020-10-19 23:10:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-19 23:10:36,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617039372] [2020-10-19 23:10:36,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381664107] [2020-10-19 23:10:36,462 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 23:10:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:36,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:36,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-19 23:10:36,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:36,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 23:10:36,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550437020] [2020-10-19 23:10:36,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:36,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:36,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:36,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:36,750 INFO L87 Difference]: Start difference. First operand 1394 states and 1712 transitions. Second operand 3 states. [2020-10-19 23:10:37,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:37,340 INFO L93 Difference]: Finished difference Result 2230 states and 2689 transitions. [2020-10-19 23:10:37,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:37,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2020-10-19 23:10:37,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:37,353 INFO L225 Difference]: With dead ends: 2230 [2020-10-19 23:10:37,353 INFO L226 Difference]: Without dead ends: 2228 [2020-10-19 23:10:37,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 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 23:10:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-10-19 23:10:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 1116. [2020-10-19 23:10:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1347 transitions. [2020-10-19 23:10:37,402 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1347 transitions. Word has length 174 [2020-10-19 23:10:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:37,403 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1347 transitions. [2020-10-19 23:10:37,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1347 transitions. [2020-10-19 23:10:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-19 23:10:37,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:37,406 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, 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] [2020-10-19 23:10:37,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-19 23:10:37,617 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:37,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:37,617 INFO L82 PathProgramCache]: Analyzing trace with hash 792979620, now seen corresponding path program 1 times [2020-10-19 23:10:37,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:37,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022894248] [2020-10-19 23:10:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:37,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022894248] [2020-10-19 23:10:37,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:37,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:10:37,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012401888] [2020-10-19 23:10:37,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:10:37,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:37,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:10:37,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:37,857 INFO L87 Difference]: Start difference. First operand 1116 states and 1347 transitions. Second operand 7 states. [2020-10-19 23:10:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:38,397 INFO L93 Difference]: Finished difference Result 2146 states and 2603 transitions. [2020-10-19 23:10:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:10:38,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-19 23:10:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:38,402 INFO L225 Difference]: With dead ends: 2146 [2020-10-19 23:10:38,403 INFO L226 Difference]: Without dead ends: 1116 [2020-10-19 23:10:38,404 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 23:10:38,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-10-19 23:10:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-10-19 23:10:38,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-19 23:10:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1340 transitions. [2020-10-19 23:10:38,427 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1340 transitions. Word has length 179 [2020-10-19 23:10:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:38,428 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1340 transitions. [2020-10-19 23:10:38,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:10:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1340 transitions. [2020-10-19 23:10:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-19 23:10:38,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:38,431 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:38,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:10:38,432 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:38,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1935726902, now seen corresponding path program 1 times [2020-10-19 23:10:38,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:38,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148965108] [2020-10-19 23:10:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:38,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148965108] [2020-10-19 23:10:38,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:38,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:38,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653672629] [2020-10-19 23:10:38,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:38,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:38,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:38,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:38,574 INFO L87 Difference]: Start difference. First operand 1116 states and 1340 transitions. Second operand 3 states. [2020-10-19 23:10:39,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:39,325 INFO L93 Difference]: Finished difference Result 2369 states and 2912 transitions. [2020-10-19 23:10:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:39,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-10-19 23:10:39,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:39,340 INFO L225 Difference]: With dead ends: 2369 [2020-10-19 23:10:39,341 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:10:39,342 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 23:10:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:10:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-19 23:10:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1455 transitions. [2020-10-19 23:10:39,368 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1455 transitions. Word has length 215 [2020-10-19 23:10:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:39,368 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1455 transitions. [2020-10-19 23:10:39,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1455 transitions. [2020-10-19 23:10:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-19 23:10:39,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:39,373 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:10:39,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:10:39,374 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:39,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:39,375 INFO L82 PathProgramCache]: Analyzing trace with hash -755561383, now seen corresponding path program 1 times [2020-10-19 23:10:39,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:39,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899309745] [2020-10-19 23:10:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 24 proven. 125 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 23:10:39,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899309745] [2020-10-19 23:10:39,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986640521] [2020-10-19 23:10:39,710 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 23:10:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:39,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:39,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-19 23:10:39,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:39,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:10:39,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900163494] [2020-10-19 23:10:39,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:39,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:39,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:39,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:39,883 INFO L87 Difference]: Start difference. First operand 1255 states and 1455 transitions. Second operand 3 states. [2020-10-19 23:10:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:40,476 INFO L93 Difference]: Finished difference Result 2647 states and 3142 transitions. [2020-10-19 23:10:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:40,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2020-10-19 23:10:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:40,484 INFO L225 Difference]: With dead ends: 2647 [2020-10-19 23:10:40,484 INFO L226 Difference]: Without dead ends: 1533 [2020-10-19 23:10:40,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 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 23:10:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-10-19 23:10:40,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1394. [2020-10-19 23:10:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-10-19 23:10:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1609 transitions. [2020-10-19 23:10:40,512 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1609 transitions. Word has length 274 [2020-10-19 23:10:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:40,513 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1609 transitions. [2020-10-19 23:10:40,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1609 transitions. [2020-10-19 23:10:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-19 23:10:40,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:40,519 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:10:40,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:10:40,733 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:40,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:40,734 INFO L82 PathProgramCache]: Analyzing trace with hash 255223347, now seen corresponding path program 1 times [2020-10-19 23:10:40,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:40,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638101267] [2020-10-19 23:10:40,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 23:10:40,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638101267] [2020-10-19 23:10:40,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:40,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:40,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494089662] [2020-10-19 23:10:40,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:40,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:40,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:40,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:40,944 INFO L87 Difference]: Start difference. First operand 1394 states and 1609 transitions. Second operand 3 states. [2020-10-19 23:10:41,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:41,670 INFO L93 Difference]: Finished difference Result 2647 states and 3073 transitions. [2020-10-19 23:10:41,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:41,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-10-19 23:10:41,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:41,678 INFO L225 Difference]: With dead ends: 2647 [2020-10-19 23:10:41,678 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:10:41,682 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 23:10:41,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:10:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-19 23:10:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1386 transitions. [2020-10-19 23:10:41,717 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1386 transitions. Word has length 325 [2020-10-19 23:10:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:41,718 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1386 transitions. [2020-10-19 23:10:41,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1386 transitions. [2020-10-19 23:10:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-19 23:10:41,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:41,732 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:41,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:10:41,733 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:41,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1160090979, now seen corresponding path program 1 times [2020-10-19 23:10:41,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:41,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87564359] [2020-10-19 23:10:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-19 23:10:42,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87564359] [2020-10-19 23:10:42,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:42,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:42,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620721144] [2020-10-19 23:10:42,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:42,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:42,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:42,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:42,093 INFO L87 Difference]: Start difference. First operand 1255 states and 1386 transitions. Second operand 3 states. [2020-10-19 23:10:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:42,816 INFO L93 Difference]: Finished difference Result 3203 states and 3560 transitions. [2020-10-19 23:10:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:42,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 327 [2020-10-19 23:10:42,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:42,829 INFO L225 Difference]: With dead ends: 3203 [2020-10-19 23:10:42,830 INFO L226 Difference]: Without dead ends: 2089 [2020-10-19 23:10:42,833 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 23:10:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-19 23:10:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-10-19 23:10:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-19 23:10:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2280 transitions. [2020-10-19 23:10:42,877 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2280 transitions. Word has length 327 [2020-10-19 23:10:42,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:42,878 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2280 transitions. [2020-10-19 23:10:42,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2280 transitions. [2020-10-19 23:10:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-19 23:10:42,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:42,890 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:42,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:10:42,891 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:42,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:42,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1385070843, now seen corresponding path program 1 times [2020-10-19 23:10:42,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:42,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523884175] [2020-10-19 23:10:42,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 17 proven. 54 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:10:43,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523884175] [2020-10-19 23:10:43,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979723251] [2020-10-19 23:10:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:10:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:43,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:43,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-19 23:10:43,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:43,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:10:43,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827636672] [2020-10-19 23:10:43,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:43,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:43,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:43,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:10:43,638 INFO L87 Difference]: Start difference. First operand 2089 states and 2280 transitions. Second operand 3 states. [2020-10-19 23:10:44,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:44,219 INFO L93 Difference]: Finished difference Result 4313 states and 4722 transitions. [2020-10-19 23:10:44,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:44,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2020-10-19 23:10:44,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:44,220 INFO L225 Difference]: With dead ends: 4313 [2020-10-19 23:10:44,221 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:10:44,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:10:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:10:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:10:44,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:10:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:10:44,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2020-10-19 23:10:44,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:44,226 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:10:44,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:44,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:10:44,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:10:44,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-19 23:10:44,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:10:44,724 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-10-19 23:10:44,928 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-10-19 23:10:44,932 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:10:44,932 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:10:44,932 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:10:44,933 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:10:44,934 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:10:44,934 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:10:44,934 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:10:44,934 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:10:44,934 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,934 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,935 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,935 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,935 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,936 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,936 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:10:44,936 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:10:44,936 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,937 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:10:44,938 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:10:44,939 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:10:44,940 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:10:44,941 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (= ~a10~0 0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (<= 23 ~a1~0) .cse0 .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse2 .cse3) (and .cse0 (= ~a10~0 2) .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= ~a19~0 6)) (and .cse0 (<= 9 ~a19~0) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-10-19 23:10:44,941 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:10:44,941 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:10:44,941 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:10:44,941 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:10:44,941 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,941 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:10:44,942 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:10:44,943 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,944 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:10:44,945 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:10:44,946 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:10:44,946 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:10:44,946 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:10:44,946 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:10:44,947 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse1 (= ~a10~0 0)) (.cse0 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (<= 23 ~a1~0) .cse0 .cse1 .cse2) (and .cse0 (<= 4 ~a10~0) .cse2 .cse3) (and .cse0 (= ~a10~0 2) .cse2 .cse3) (and (= ~a10~0 3) .cse0 .cse2 .cse3) (and .cse0 .cse1 .cse2 (<= ~a19~0 6)) (and .cse0 (<= 9 ~a19~0) .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse2))) [2020-10-19 23:10:44,947 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:10:44,947 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,947 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,947 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,947 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,948 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:10:44,948 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,948 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,948 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:10:44,948 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:10:44,948 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:10:44,949 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:10:44,949 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:10:44,949 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:10:44,949 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:10:44,949 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:10:44,949 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:10:44,950 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:10:44,950 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:10:44,950 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:10:44,950 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:10:44,950 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:10:44,951 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,951 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,951 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,951 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,951 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,951 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,952 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:10:44,952 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:10:44,952 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:10:44,952 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:10:44,952 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:10:44,952 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:10:44,953 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:10:44,953 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:10:44,953 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:10:44,953 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:10:44,953 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:10:44,953 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:10:44,954 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:10:44,954 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:10:44,954 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:10:44,954 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:10:44,954 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,954 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,955 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,955 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,955 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,955 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,955 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:10:44,955 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:10:44,956 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:10:44,956 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:10:44,956 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:10:44,956 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:10:44,956 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:10:44,956 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:10:44,957 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:10:44,957 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:10:44,957 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:10:44,957 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:10:44,957 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:10:44,957 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,958 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,958 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,958 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,958 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,958 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:10:44,958 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,959 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:10:44,959 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:10:44,959 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:10:44,959 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:10:44,959 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:10:44,960 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:10:44,960 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:10:44,960 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:10:44,960 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:10:44,960 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:10:44,961 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:10:44,961 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:10:44,961 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:10:44,961 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,961 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,961 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,962 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,962 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:44,962 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:45,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:10:45 BoogieIcfgContainer [2020-10-19 23:10:45,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:10:45,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:10:45,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:10:45,012 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:10:45,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:31" (3/4) ... [2020-10-19 23:10:45,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:10:45,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:10:45,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:10:45,052 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:45,053 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:45,273 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:10:45,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:10:45,275 INFO L168 Benchmark]: Toolchain (without parser) took 16680.50 ms. Allocated memory was 36.7 MB in the beginning and 202.9 MB in the end (delta: 166.2 MB). Free memory was 17.2 MB in the beginning and 155.0 MB in the end (delta: -137.7 MB). Peak memory consumption was 171.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,276 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory was 12.3 MB in the beginning and 12.3 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.64 ms. Allocated memory was 36.7 MB in the beginning and 45.6 MB in the end (delta: 8.9 MB). Free memory was 16.4 MB in the beginning and 20.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.86 ms. Allocated memory is still 45.6 MB. Free memory was 20.1 MB in the beginning and 12.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,277 INFO L168 Benchmark]: Boogie Preprocessor took 137.37 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 12.2 MB in the beginning and 20.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,278 INFO L168 Benchmark]: RCFGBuilder took 1603.79 ms. Allocated memory was 46.1 MB in the beginning and 57.7 MB in the end (delta: 11.5 MB). Free memory was 20.0 MB in the beginning and 13.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,279 INFO L168 Benchmark]: TraceAbstraction took 13763.78 ms. Allocated memory was 57.7 MB in the beginning and 201.9 MB in the end (delta: 144.2 MB). Free memory was 13.0 MB in the beginning and 17.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,279 INFO L168 Benchmark]: Witness Printer took 262.42 ms. Allocated memory was 201.9 MB in the beginning and 202.9 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 155.0 MB in the end (delta: -137.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:45,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory was 12.3 MB in the beginning and 12.3 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 790.64 ms. Allocated memory was 36.7 MB in the beginning and 45.6 MB in the end (delta: 8.9 MB). Free memory was 16.4 MB in the beginning and 20.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 107.86 ms. Allocated memory is still 45.6 MB. Free memory was 20.1 MB in the beginning and 12.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 137.37 ms. Allocated memory was 45.6 MB in the beginning and 46.1 MB in the end (delta: 524.3 kB). Free memory was 12.2 MB in the beginning and 20.0 MB in the end (delta: -7.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1603.79 ms. Allocated memory was 46.1 MB in the beginning and 57.7 MB in the end (delta: 11.5 MB). Free memory was 20.0 MB in the beginning and 13.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 13763.78 ms. Allocated memory was 57.7 MB in the beginning and 201.9 MB in the end (delta: 144.2 MB). Free memory was 13.0 MB in the beginning and 17.1 MB in the end (delta: -4.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 14.3 GB. * Witness Printer took 262.42 ms. Allocated memory was 201.9 MB in the beginning and 202.9 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 155.0 MB in the end (delta: -137.9 MB). Peak memory consumption was 6.3 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: ((((((((23 <= a1 && 14 == a4) && a10 == 0) && a12 == 0) || (((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 6)) || (((14 == a4 && 9 <= a19) && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((((23 <= a1 && 14 == a4) && a10 == 0) && a12 == 0) || (((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((14 == a4 && a10 == 0) && a12 == 0) && a19 <= 6)) || (((14 == a4 && 9 <= a19) && a10 == 0) && a12 == 0)) || ((a10 == 1 && 14 == a4) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.1s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1481 SDtfs, 1260 SDslu, 58 SDs, 0 SdLazy, 4551 SolverSat, 692 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 823 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=11, 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, 1529 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 179 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1084 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 194 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 3055 NumberOfCodeBlocks, 3055 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3040 ConstructedInterpolants, 0 QuantifiedInterpolants, 2706518 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1171 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 1953/2201 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...