./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaA1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1a5ad591ce856c2d846b6a372eee9518c32c9e01 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:42:43,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:42:43,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:42:43,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:42:43,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:42:43,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:42:43,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:42:43,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:42:43,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:42:43,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:42:43,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:42:43,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:42:43,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:42:43,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:42:43,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:42:43,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:42:43,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:42:43,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:42:43,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:42:43,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:42:43,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:42:43,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:42:43,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:42:43,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:42:43,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:42:43,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:42:43,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:42:43,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:42:43,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:42:43,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:42:43,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:42:43,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:42:43,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:42:43,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:42:43,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:42:43,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:42:43,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:42:43,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:42:43,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:42:43,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:42:43,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:42:43,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:42:43,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:42:43,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:42:43,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:42:43,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:42:43,670 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:42:43,670 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:42:43,671 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:42:43,671 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:42:43,671 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:42:43,671 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:42:43,672 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:42:43,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:42:43,672 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:42:43,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:42:43,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:42:43,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:42:43,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:42:43,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:42:43,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:42:43,673 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:42:43,674 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:42:43,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:42:43,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:42:43,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:42:43,675 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:42:43,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:42:43,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:42:43,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:42:43,675 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:42:43,676 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:42:43,677 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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(F end) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a5ad591ce856c2d846b6a372eee9518c32c9e01 [2020-10-19 18:42:44,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:42:44,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:42:44,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:42:44,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:42:44,038 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:42:44,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2020-10-19 18:42:44,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510b0e562/fc18770a711a4ff18c0d9d4c3be8ae23/FLAG4ea360658 [2020-10-19 18:42:44,541 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:42:44,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2020-10-19 18:42:44,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510b0e562/fc18770a711a4ff18c0d9d4c3be8ae23/FLAG4ea360658 [2020-10-19 18:42:44,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510b0e562/fc18770a711a4ff18c0d9d4c3be8ae23 [2020-10-19 18:42:44,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:42:44,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:42:44,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:42:44,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:42:44,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:42:44,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:42:44" (1/1) ... [2020-10-19 18:42:44,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fd2090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:44, skipping insertion in model container [2020-10-19 18:42:44,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:42:44" (1/1) ... [2020-10-19 18:42:44,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:42:44,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:42:45,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:42:45,117 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:42:45,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:42:45,143 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:42:45,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45 WrapperNode [2020-10-19 18:42:45,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:42:45,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:42:45,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:42:45,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:42:45,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:42:45,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:42:45,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:42:45,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:42:45,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (1/1) ... [2020-10-19 18:42:45,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:42:45,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:42:45,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:42:45,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:42:45,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:42:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:42:45,513 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:42:45,514 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:42:45,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:45 BoogieIcfgContainer [2020-10-19 18:42:45,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:42:45,519 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:42:45,520 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:42:45,524 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:42:45,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:45,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:42:44" (1/3) ... [2020-10-19 18:42:45,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@357cff16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:42:45, skipping insertion in model container [2020-10-19 18:42:45,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:45,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:42:45" (2/3) ... [2020-10-19 18:42:45,529 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@357cff16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:42:45, skipping insertion in model container [2020-10-19 18:42:45,529 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:42:45,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:45" (3/3) ... [2020-10-19 18:42:45,531 INFO L373 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2020-10-19 18:42:45,597 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:42:45,597 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:42:45,597 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:42:45,598 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:42:45,598 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:42:45,598 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:42:45,599 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:42:45,599 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:42:45,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-19 18:42:45,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:42:45,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:45,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:45,642 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:45,642 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:42:45,643 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:42:45,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-19 18:42:45,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:42:45,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:45,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:45,645 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:45,645 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:42:45,652 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2020-10-19 18:42:45,653 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 > 0);main_~y~0 := 0; 3#L12-2true assume !(main_~y~0 < main_~x~0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2020-10-19 18:42:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:45,658 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:42:45,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:45,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154231657] [2020-10-19 18:42:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:45,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:45,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:45,764 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:45,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:45,766 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-19 18:42:45,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:45,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838818232] [2020-10-19 18:42:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:45,839 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 18:42:45,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838818232] [2020-10-19 18:42:45,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:42:45,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:42:45,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427678677] [2020-10-19 18:42:45,856 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:42:45,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:42:45,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:42:45,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:42:45,905 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-10-19 18:42:45,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:42:45,960 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-10-19 18:42:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:42:45,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-10-19 18:42:45,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:42:45,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2020-10-19 18:42:45,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-19 18:42:45,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-19 18:42:45,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-10-19 18:42:45,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:42:45,972 INFO L691 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-10-19 18:42:45,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-10-19 18:42:45,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-10-19 18:42:45,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 18:42:45,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-10-19 18:42:45,995 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-10-19 18:42:45,995 INFO L594 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-10-19 18:42:45,995 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:42:45,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-10-19 18:42:45,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:42:45,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:45,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:45,996 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:42:45,997 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 18:42:45,997 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 29#L10-2 [2020-10-19 18:42:45,997 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 26#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 27#L12-2 assume !(main_~y~0 < main_~x~0); 30#L12-3 main_~x~0 := main_~x~0 - 1; 29#L10-2 [2020-10-19 18:42:45,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:45,998 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-10-19 18:42:45,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:45,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687378970] [2020-10-19 18:42:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,006 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:46,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2020-10-19 18:42:46,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:46,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945481074] [2020-10-19 18:42:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,025 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:46,026 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2020-10-19 18:42:46,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:46,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191221625] [2020-10-19 18:42:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,042 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:46,135 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:46,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:46,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:46,137 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:46,137 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:42:46,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:46,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:46,138 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2020-10-19 18:42:46,138 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:46,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:46,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:46,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:46,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:46,279 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:46,280 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:46,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:46,289 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,300 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:46,300 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:46,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:46,339 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,344 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:46,344 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:46,369 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:46,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:46,444 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:42:46,447 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:46,447 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:46,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:46,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:46,448 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:42:46,448 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:46,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:46,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2020-10-19 18:42:46,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:46,449 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:46,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:46,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:46,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:46,546 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:46,552 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:46,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:46,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:46,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:46,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:46,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:46,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:46,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:46,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:46,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:46,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:46,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:46,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:46,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:46,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:46,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:46,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:46,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:46,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:46,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:46,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:46,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:46,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,679 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:42:46,685 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:42:46,686 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,697 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:42:46,697 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:42:46,697 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:42:46,698 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-10-19 18:42:46,722 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:42:46,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:46,760 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:46,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:46,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:46,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:42:46,807 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:42:46,809 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-10-19 18:42:46,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 9 states and 12 transitions. Complement of second has 4 states. [2020-10-19 18:42:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:42:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:46,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2020-10-19 18:42:46,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:46,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 18:42:46,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:46,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2020-10-19 18:42:46,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:46,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2020-10-19 18:42:46,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:46,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2020-10-19 18:42:46,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-19 18:42:46,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-19 18:42:46,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-10-19 18:42:46,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:42:46,873 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-19 18:42:46,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-10-19 18:42:46,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-10-19 18:42:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-19 18:42:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-10-19 18:42:46,882 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:42:46,882 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:42:46,882 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:42:46,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-10-19 18:42:46,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:46,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:46,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:46,887 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:42:46,887 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:42:46,887 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 79#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 75#L12-2 [2020-10-19 18:42:46,888 INFO L796 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 75#L12-2 [2020-10-19 18:42:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:46,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-19 18:42:46,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:46,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967060169] [2020-10-19 18:42:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,913 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:46,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:46,916 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-19 18:42:46,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:46,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697712807] [2020-10-19 18:42:46,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:46,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:46,948 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-19 18:42:46,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:46,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412312929] [2020-10-19 18:42:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:46,973 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:46,975 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:46,992 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:46,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:46,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:46,992 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:46,993 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:42:46,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:46,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:46,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:46,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2020-10-19 18:42:46,993 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:46,994 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:46,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,068 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:47,068 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:47,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:47,079 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:47,079 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:47,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:47,126 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:47,126 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:47,155 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:47,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:42:47,347 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:42:47,349 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:47,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:47,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:47,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:47,350 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:42:47,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:47,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:47,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2020-10-19 18:42:47,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:47,351 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:47,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,424 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:47,424 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:47,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:47,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:47,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:47,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:47,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:47,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:47,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:47,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:47,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:47,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:47,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:47,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:47,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:47,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,518 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:47,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:47,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:47,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:47,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:47,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:47,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:47,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:47,573 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:42:47,582 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:42:47,582 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:42:47,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:42:47,586 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:42:47,587 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-10-19 18:42:47,607 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:42:47,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:47,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:47,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:47,645 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:47,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:47,645 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 18:42:47,646 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-19 18:42:47,646 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-19 18:42:47,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2020-10-19 18:42:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:47,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-19 18:42:47,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:47,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-19 18:42:47,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:47,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-19 18:42:47,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:47,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-10-19 18:42:47,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:47,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2020-10-19 18:42:47,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-19 18:42:47,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-10-19 18:42:47,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-10-19 18:42:47,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:42:47,667 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-10-19 18:42:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-10-19 18:42:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2020-10-19 18:42:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-19 18:42:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-10-19 18:42:47,669 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-10-19 18:42:47,669 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-10-19 18:42:47,670 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:42:47,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-10-19 18:42:47,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:42:47,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:42:47,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:42:47,671 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-10-19 18:42:47,671 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:42:47,672 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 130#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 127#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 128#L12-2 assume !(main_~y~0 < main_~x~0); 132#L12-3 main_~x~0 := main_~x~0 - 1; 131#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 126#L12-2 [2020-10-19 18:42:47,672 INFO L796 eck$LassoCheckResult]: Loop: 126#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 126#L12-2 [2020-10-19 18:42:47,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:47,673 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2020-10-19 18:42:47,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:47,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545306034] [2020-10-19 18:42:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:47,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545306034] [2020-10-19 18:42:47,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773785257] [2020-10-19 18:42:47,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-19 18:42:47,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:42:47,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:42:47,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:42:47,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:42:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:42:47,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:42:47,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-19 18:42:47,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999363632] [2020-10-19 18:42:47,767 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:42:47,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:47,768 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-10-19 18:42:47,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:42:47,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691692498] [2020-10-19 18:42:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:42:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:47,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:42:47,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:42:47,776 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:42:47,787 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:47,788 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:47,788 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:47,788 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:47,788 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:42:47,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,789 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:47,789 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:47,789 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2020-10-19 18:42:47,789 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:47,789 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:47,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:47,846 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:47,846 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:47,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:47,852 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:47,857 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:47,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:47,902 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:47,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:42:47,907 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:47,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:42:47,955 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:42:48,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:42:48,007 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:48,255 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:42:48,258 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:42:48,258 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:42:48,258 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:42:48,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:42:48,258 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:42:48,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:48,259 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:42:48,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:42:48,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2020-10-19 18:42:48,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:42:48,260 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:42:48,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:48,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:48,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:42:48,318 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:42:48,319 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:48,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:48,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:48,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:48,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:48,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:48,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:48,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:48,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:48,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:48,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:48,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:48,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:48,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:48,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:42:48,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:42:48,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:48,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:42:48,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:42:48,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:42:48,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:42:48,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:42:48,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:42:48,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:42:48,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:42:48,410 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:42:48,415 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:42:48,415 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:42:48,421 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:42:48,421 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:42:48,422 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:42:48,422 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-10-19 18:42:48,441 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:42:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:48,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:48,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:48,467 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:48,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:48,468 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 18:42:48,468 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-19 18:42:48,469 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-19 18:42:48,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2020-10-19 18:42:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:48,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-19 18:42:48,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:48,485 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:42:48,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:48,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:48,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:48,513 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:48,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:48,513 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 18:42:48,514 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-19 18:42:48,514 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-19 18:42:48,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2020-10-19 18:42:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-19 18:42:48,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-19 18:42:48,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:48,528 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:42:48,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:42:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:48,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:42:48,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:42:48,560 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:42:48,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:42:48,560 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 18:42:48,560 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-19 18:42:48,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-19 18:42:48,578 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2020-10-19 18:42:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:42:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:42:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-10-19 18:42:48,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-19 18:42:48,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:48,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2020-10-19 18:42:48,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:48,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-19 18:42:48,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:42:48,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2020-10-19 18:42:48,583 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:42:48,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-10-19 18:42:48,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:42:48,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:42:48,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:42:48,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:42:48,584 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:48,584 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:48,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:42:48,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:42:48,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:42:48,585 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 6 states. [2020-10-19 18:42:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:42:48,585 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 18:42:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:42:48,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 18:42:48,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:42:48,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:42:48,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:42:48,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:42:48,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:42:48,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:42:48,587 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:48,587 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:48,587 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:42:48,587 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:42:48,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:42:48,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:42:48,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:42:48,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:42:48 BoogieIcfgContainer [2020-10-19 18:42:48,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:42:48,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:42:48,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:42:48,596 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:42:48,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:42:45" (3/4) ... [2020-10-19 18:42:48,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:42:48,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:42:48,603 INFO L168 Benchmark]: Toolchain (without parser) took 3698.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 949.2 MB in the beginning and 819.5 MB in the end (delta: 129.7 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:48,603 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:48,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.50 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:48,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.48 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:48,606 INFO L168 Benchmark]: Boogie Preprocessor took 84.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:48,607 INFO L168 Benchmark]: RCFGBuilder took 253.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:48,608 INFO L168 Benchmark]: BuchiAutomizer took 3075.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 819.5 MB in the end (delta: 288.1 MB). Peak memory consumption was 288.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:42:48,608 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 819.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:42:48,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 234.50 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.48 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 253.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3075.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 819.5 MB in the end (delta: 288.1 MB). Peak memory consumption was 288.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 819.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax201 hnf96 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp95 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...