./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label22.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/Problem01_label22.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 66bad431e70df2d18195379f6ede2eded4266fb6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:29:58,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:29:58,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:29:58,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:29:58,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:29:58,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:29:58,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:29:58,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:29:58,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:29:58,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:29:58,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:29:58,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:29:58,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:29:58,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:29:58,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:29:58,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:29:58,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:29:58,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:29:58,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:29:58,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:29:58,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:29:58,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:29:58,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:29:58,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:29:58,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:29:58,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:29:58,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:29:58,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:29:58,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:29:58,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:29:58,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:29:58,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:29:58,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:29:58,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:29:58,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:29:58,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:29:58,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:29:58,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:29:58,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:29:58,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:29:58,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:29:58,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:29:58,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:29:58,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:29:58,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:29:58,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:29:58,603 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:29:58,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:29:58,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:29:58,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:29:58,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:29:58,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:29:58,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:29:58,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:29:58,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:29:58,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:29:58,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:29:58,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:29:58,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:29:58,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:29:58,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:29:58,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:29:58,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:29:58,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:29:58,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:29:58,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:29:58,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:29:58,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:29:58,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:29:58,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:29:58,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:29:58,609 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 -> 66bad431e70df2d18195379f6ede2eded4266fb6 [2020-10-19 22:29:58,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:29:58,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:29:58,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:29:58,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:29:58,857 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:29:58,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label22.c [2020-10-19 22:29:58,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290c5b696/088a67336230481db00c84bceeb1261a/FLAG30971792e [2020-10-19 22:29:59,505 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:29:59,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label22.c [2020-10-19 22:29:59,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290c5b696/088a67336230481db00c84bceeb1261a/FLAG30971792e [2020-10-19 22:29:59,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290c5b696/088a67336230481db00c84bceeb1261a [2020-10-19 22:29:59,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:29:59,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:29:59,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:29:59,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:29:59,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:29:59,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:29:59" (1/1) ... [2020-10-19 22:29:59,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1881fa13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:29:59, skipping insertion in model container [2020-10-19 22:29:59,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:29:59" (1/1) ... [2020-10-19 22:29:59,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:29:59,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:30:00,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:30:00,406 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:30:00,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:30:00,632 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:30:00,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00 WrapperNode [2020-10-19 22:30:00,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:30:00,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:30:00,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:30:00,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:30:00,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:30:00,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:30:00,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:30:00,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:30:00,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (1/1) ... [2020-10-19 22:30:00,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:30:00,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:30:00,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:30:00,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:30:00,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (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 22:30:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:30:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:30:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:30:00,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:30:02,334 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:30:02,335 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:30:02,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:02 BoogieIcfgContainer [2020-10-19 22:30:02,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:30:02,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:30:02,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:30:02,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:30:02,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:29:59" (1/3) ... [2020-10-19 22:30:02,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461423f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:30:02, skipping insertion in model container [2020-10-19 22:30:02,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:00" (2/3) ... [2020-10-19 22:30:02,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461423f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:30:02, skipping insertion in model container [2020-10-19 22:30:02,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:02" (3/3) ... [2020-10-19 22:30:02,347 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2020-10-19 22:30:02,359 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:30:02,367 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:30:02,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:30:02,514 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:30:02,515 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:30:02,515 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:30:02,516 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:30:02,516 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:30:02,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:30:02,517 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:30:02,517 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:30:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-19 22:30:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-19 22:30:02,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:02,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:02,565 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:02,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:02,572 INFO L82 PathProgramCache]: Analyzing trace with hash -278590162, now seen corresponding path program 1 times [2020-10-19 22:30:02,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:02,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686367768] [2020-10-19 22:30:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:03,298 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 22:30:03,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686367768] [2020-10-19 22:30:03,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:03,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:03,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580123509] [2020-10-19 22:30:03,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:03,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:03,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:03,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:03,327 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 4 states. [2020-10-19 22:30:04,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:04,611 INFO L93 Difference]: Finished difference Result 663 states and 1179 transitions. [2020-10-19 22:30:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 22:30:04,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-10-19 22:30:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:04,633 INFO L225 Difference]: With dead ends: 663 [2020-10-19 22:30:04,634 INFO L226 Difference]: Without dead ends: 397 [2020-10-19 22:30:04,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:30:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-10-19 22:30:04,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2020-10-19 22:30:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-10-19 22:30:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 517 transitions. [2020-10-19 22:30:04,766 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 517 transitions. Word has length 127 [2020-10-19 22:30:04,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:04,768 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 517 transitions. [2020-10-19 22:30:04,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 517 transitions. [2020-10-19 22:30:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-19 22:30:04,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:04,773 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:04,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:30:04,774 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:04,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1543152263, now seen corresponding path program 1 times [2020-10-19 22:30:04,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:04,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643253175] [2020-10-19 22:30:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:05,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643253175] [2020-10-19 22:30:05,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:05,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:05,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900914053] [2020-10-19 22:30:05,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:05,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:05,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:05,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:05,088 INFO L87 Difference]: Start difference. First operand 397 states and 517 transitions. Second operand 4 states. [2020-10-19 22:30:06,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:06,064 INFO L93 Difference]: Finished difference Result 887 states and 1235 transitions. [2020-10-19 22:30:06,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:30:06,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2020-10-19 22:30:06,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:06,074 INFO L225 Difference]: With dead ends: 887 [2020-10-19 22:30:06,074 INFO L226 Difference]: Without dead ends: 528 [2020-10-19 22:30:06,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-19 22:30:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 397. [2020-10-19 22:30:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-10-19 22:30:06,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 474 transitions. [2020-10-19 22:30:06,117 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 474 transitions. Word has length 134 [2020-10-19 22:30:06,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:06,119 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 474 transitions. [2020-10-19 22:30:06,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:06,119 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 474 transitions. [2020-10-19 22:30:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-19 22:30:06,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:06,124 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:06,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:30:06,125 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:06,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:06,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1592386429, now seen corresponding path program 1 times [2020-10-19 22:30:06,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:06,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774766846] [2020-10-19 22:30:06,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:06,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774766846] [2020-10-19 22:30:06,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:06,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:06,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221417379] [2020-10-19 22:30:06,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:06,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:06,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:06,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:06,282 INFO L87 Difference]: Start difference. First operand 397 states and 474 transitions. Second operand 4 states. [2020-10-19 22:30:07,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:07,041 INFO L93 Difference]: Finished difference Result 1054 states and 1283 transitions. [2020-10-19 22:30:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:30:07,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-10-19 22:30:07,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:07,046 INFO L225 Difference]: With dead ends: 1054 [2020-10-19 22:30:07,046 INFO L226 Difference]: Without dead ends: 659 [2020-10-19 22:30:07,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-19 22:30:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2020-10-19 22:30:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-19 22:30:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 784 transitions. [2020-10-19 22:30:07,080 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 784 transitions. Word has length 142 [2020-10-19 22:30:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:07,080 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 784 transitions. [2020-10-19 22:30:07,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 784 transitions. [2020-10-19 22:30:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-19 22:30:07,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:07,085 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:07,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:30:07,086 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:07,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:07,087 INFO L82 PathProgramCache]: Analyzing trace with hash -162913347, now seen corresponding path program 1 times [2020-10-19 22:30:07,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:07,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737086676] [2020-10-19 22:30:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-19 22:30:07,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737086676] [2020-10-19 22:30:07,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:07,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:07,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322616824] [2020-10-19 22:30:07,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:07,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:07,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:07,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:07,210 INFO L87 Difference]: Start difference. First operand 659 states and 784 transitions. Second operand 3 states. [2020-10-19 22:30:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:07,754 INFO L93 Difference]: Finished difference Result 1840 states and 2180 transitions. [2020-10-19 22:30:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:07,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-10-19 22:30:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:07,760 INFO L225 Difference]: With dead ends: 1840 [2020-10-19 22:30:07,761 INFO L226 Difference]: Without dead ends: 1183 [2020-10-19 22:30:07,763 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 22:30:07,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2020-10-19 22:30:07,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1052. [2020-10-19 22:30:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-19 22:30:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1259 transitions. [2020-10-19 22:30:07,788 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1259 transitions. Word has length 167 [2020-10-19 22:30:07,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:07,789 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1259 transitions. [2020-10-19 22:30:07,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1259 transitions. [2020-10-19 22:30:07,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-19 22:30:07,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:07,793 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:30:07,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:30:07,794 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:07,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1016307205, now seen corresponding path program 1 times [2020-10-19 22:30:07,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:07,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475325453] [2020-10-19 22:30:07,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:30:07,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475325453] [2020-10-19 22:30:07,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791446124] [2020-10-19 22:30:07,890 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 22:30:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:08,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:30:08,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:30:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-19 22:30:08,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:30:08,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:30:08,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672276636] [2020-10-19 22:30:08,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:08,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:08,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:08,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:30:08,201 INFO L87 Difference]: Start difference. First operand 1052 states and 1259 transitions. Second operand 3 states. [2020-10-19 22:30:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:08,761 INFO L93 Difference]: Finished difference Result 2493 states and 2983 transitions. [2020-10-19 22:30:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:08,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-10-19 22:30:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:08,763 INFO L225 Difference]: With dead ends: 2493 [2020-10-19 22:30:08,763 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:30:08,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:30:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:30:08,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:30:08,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:30:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:30:08,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-10-19 22:30:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:08,768 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:30:08,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:30:08,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:30:08,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:30:08,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:30:09,041 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,041 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,041 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,041 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,041 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,041 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-19 22:30:09,042 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-19 22:30:09,043 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-19 22:30:09,043 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-19 22:30:09,043 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:30:09,043 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-19 22:30:09,044 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-19 22:30:09,044 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,044 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,044 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,045 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,045 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,045 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,045 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-19 22:30:09,045 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-19 22:30:09,046 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-19 22:30:09,046 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-19 22:30:09,046 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-19 22:30:09,046 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-19 22:30:09,046 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-19 22:30:09,046 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-19 22:30:09,047 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-19 22:30:09,047 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-19 22:30:09,047 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,047 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,047 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,048 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,048 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,048 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,048 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-19 22:30:09,048 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-19 22:30:09,049 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-19 22:30:09,049 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-19 22:30:09,049 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-19 22:30:09,049 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-19 22:30:09,049 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-19 22:30:09,050 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-19 22:30:09,050 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-19 22:30:09,050 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-19 22:30:09,050 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-19 22:30:09,050 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-19 22:30:09,051 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-19 22:30:09,051 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-19 22:30:09,051 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-19 22:30:09,051 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,051 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,052 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,052 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,052 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,052 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-19 22:30:09,052 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-19 22:30:09,053 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-19 22:30:09,053 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-19 22:30:09,053 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-19 22:30:09,053 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-19 22:30:09,053 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-19 22:30:09,053 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-19 22:30:09,054 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-19 22:30:09,054 INFO L270 CegarLoopResult]: At program point L576(lines 32 577) the Hoare annotation is: (or (<= ~a16~0 5) (not (= ~a7~0 1)) (<= ~a8~0 13)) [2020-10-19 22:30:09,054 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,055 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,055 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,055 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,055 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,055 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-19 22:30:09,055 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-19 22:30:09,056 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-19 22:30:09,056 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-19 22:30:09,056 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-19 22:30:09,056 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-19 22:30:09,056 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-19 22:30:09,056 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-19 22:30:09,057 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-19 22:30:09,057 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-19 22:30:09,057 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-19 22:30:09,057 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-19 22:30:09,057 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-19 22:30:09,058 INFO L277 CegarLoopResult]: At program point L579(lines 579 596) the Hoare annotation is: true [2020-10-19 22:30:09,058 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,058 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,058 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,058 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,059 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,059 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-19 22:30:09,059 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-19 22:30:09,059 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-19 22:30:09,059 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-19 22:30:09,059 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-19 22:30:09,060 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-19 22:30:09,060 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-19 22:30:09,060 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-19 22:30:09,060 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:30:09,060 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-19 22:30:09,061 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,061 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,061 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,061 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,061 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-19 22:30:09,061 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,062 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-19 22:30:09,062 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-19 22:30:09,062 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-19 22:30:09,062 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-19 22:30:09,062 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-19 22:30:09,062 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-19 22:30:09,063 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-19 22:30:09,063 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-19 22:30:09,063 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-19 22:30:09,063 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-19 22:30:09,063 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-19 22:30:09,063 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-19 22:30:09,064 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-19 22:30:09,064 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,064 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (<= ~a16~0 5) (not (= ~a7~0 1)) (<= ~a8~0 13)) [2020-10-19 22:30:09,064 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,064 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,065 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,065 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,065 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-19 22:30:09,065 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-19 22:30:09,065 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-19 22:30:09,066 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-19 22:30:09,066 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-19 22:30:09,066 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-19 22:30:09,066 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-19 22:30:09,066 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:30:09,066 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-19 22:30:09,067 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,067 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,067 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,067 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,067 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,067 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-19 22:30:09,068 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-19 22:30:09,068 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-19 22:30:09,068 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-19 22:30:09,068 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-19 22:30:09,068 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-19 22:30:09,069 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-19 22:30:09,069 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-19 22:30:09,069 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-19 22:30:09,069 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-19 22:30:09,069 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:30:09,070 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-19 22:30:09,070 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-19 22:30:09,070 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,070 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,070 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,071 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,071 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-19 22:30:09,071 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,071 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,079 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-19 22:30:09,079 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-19 22:30:09,080 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-19 22:30:09,080 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-19 22:30:09,080 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-19 22:30:09,080 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-19 22:30:09,080 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-19 22:30:09,080 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-19 22:30:09,081 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-19 22:30:09,081 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-19 22:30:09,081 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-19 22:30:09,081 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-19 22:30:09,081 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:30:09,082 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:30:09,082 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,082 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,082 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,082 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,083 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,083 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-19 22:30:09,083 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:09,083 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-19 22:30:09,083 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-19 22:30:09,084 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-19 22:30:09,084 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-19 22:30:09,084 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-19 22:30:09,084 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-19 22:30:09,084 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-19 22:30:09,084 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-19 22:30:09,085 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-19 22:30:09,085 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-19 22:30:09,085 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-19 22:30:09,085 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-19 22:30:09,085 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-19 22:30:09,086 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-19 22:30:09,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:30:09 BoogieIcfgContainer [2020-10-19 22:30:09,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:30:09,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:30:09,106 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:30:09,106 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:30:09,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:02" (3/4) ... [2020-10-19 22:30:09,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:30:09,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:30:09,134 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:30:09,135 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:30:09,137 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:30:09,304 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:30:09,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:30:09,306 INFO L168 Benchmark]: Toolchain (without parser) took 9525.24 ms. Allocated memory was 35.1 MB in the beginning and 106.4 MB in the end (delta: 71.3 MB). Free memory was 10.6 MB in the beginning and 58.1 MB in the end (delta: -47.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,307 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.24 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 9.7 MB in the beginning and 13.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.15 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 13.7 MB in the beginning and 21.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,309 INFO L168 Benchmark]: Boogie Preprocessor took 106.73 ms. Allocated memory is still 45.1 MB. Free memory was 21.3 MB in the beginning and 16.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,309 INFO L168 Benchmark]: RCFGBuilder took 1456.46 ms. Allocated memory was 45.1 MB in the beginning and 55.6 MB in the end (delta: 10.5 MB). Free memory was 16.5 MB in the beginning and 14.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,310 INFO L168 Benchmark]: TraceAbstraction took 6766.54 ms. Allocated memory was 55.6 MB in the beginning and 106.4 MB in the end (delta: 50.9 MB). Free memory was 13.3 MB in the beginning and 76.9 MB in the end (delta: -63.6 MB). Peak memory consumption was 51.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,310 INFO L168 Benchmark]: Witness Printer took 198.43 ms. Allocated memory is still 106.4 MB. Free memory was 76.9 MB in the beginning and 58.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:09,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 840.24 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 9.7 MB in the beginning and 13.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 135.15 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 13.7 MB in the beginning and 21.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 106.73 ms. Allocated memory is still 45.1 MB. Free memory was 21.3 MB in the beginning and 16.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1456.46 ms. Allocated memory was 45.1 MB in the beginning and 55.6 MB in the end (delta: 10.5 MB). Free memory was 16.5 MB in the beginning and 14.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 6766.54 ms. Allocated memory was 55.6 MB in the beginning and 106.4 MB in the end (delta: 50.9 MB). Free memory was 13.3 MB in the beginning and 76.9 MB in the end (delta: -63.6 MB). Peak memory consumption was 51.4 MB. Max. memory is 14.3 GB. * Witness Printer took 198.43 ms. Allocated memory is still 106.4 MB. Free memory was 76.9 MB in the beginning and 58.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 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: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (a16 <= 5 || !(a7 == 1)) || a8 <= 13 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (a16 <= 5 || !(a7 == 1)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 350 SDtfs, 960 SDslu, 45 SDs, 0 SdLazy, 2260 SolverSat, 548 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1052occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 262 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 30 NumberOfFragments, 23 HoareAnnotationTreeSize, 3 FomulaSimplifications, 530 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 916 ConstructedInterpolants, 0 QuantifiedInterpolants, 732597 SizeOfPredicates, 1 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 285/288 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...