./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaC9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab 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/PastaC9.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 ddb977b9fea860f52c9087edc999243e3a2c7a92 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:58:55,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:58:55,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:58:55,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:58:55,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:58:55,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:58:55,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:58:55,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:58:55,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:58:55,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:58:55,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:58:55,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:58:55,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:58:55,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:58:55,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:58:55,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:58:55,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:58:55,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:58:55,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:58:55,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:58:55,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:58:55,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:58:55,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:58:55,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:58:55,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:58:55,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:58:55,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:58:55,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:58:55,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:58:55,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:58:55,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:58:55,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:58:55,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:58:55,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:58:55,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:58:55,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:58:55,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:58:55,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:58:55,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:58:55,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:58:55,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:58:55,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 02:58:55,795 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:58:55,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:58:55,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:58:55,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:58:55,801 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:58:55,801 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 02:58:55,801 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 02:58:55,802 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 02:58:55,802 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 02:58:55,802 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 02:58:55,804 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 02:58:55,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:58:55,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:58:55,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:58:55,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:58:55,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 02:58:55,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 02:58:55,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 02:58:55,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:58:55,807 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 02:58:55,807 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:58:55,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 02:58:55,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:58:55,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:58:55,809 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 02:58:55,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:58:55,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:58:55,809 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 02:58:55,811 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 02:58:55,812 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 -> ddb977b9fea860f52c9087edc999243e3a2c7a92 [2019-11-28 02:58:56,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:58:56,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:58:56,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:58:56,151 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:58:56,152 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:58:56,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaC9.c [2019-11-28 02:58:56,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b1df205/6a7e0bb236d14d74a5d4c421b3ad03a1/FLAG6866f1c4e [2019-11-28 02:58:56,705 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:58:56,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaC9.c [2019-11-28 02:58:56,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b1df205/6a7e0bb236d14d74a5d4c421b3ad03a1/FLAG6866f1c4e [2019-11-28 02:58:57,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9b1df205/6a7e0bb236d14d74a5d4c421b3ad03a1 [2019-11-28 02:58:57,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:58:57,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:58:57,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:58:57,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:58:57,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:58:57,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb1dd1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57, skipping insertion in model container [2019-11-28 02:58:57,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:58:57,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:58:57,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:58:57,307 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:58:57,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:58:57,339 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:58:57,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57 WrapperNode [2019-11-28 02:58:57,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:58:57,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:58:57,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:58:57,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:58:57,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:58:57,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:58:57,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:58:57,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:58:57,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (1/1) ... [2019-11-28 02:58:57,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:58:57,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:58:57,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:58:57,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:58:57,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (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 [2019-11-28 02:58:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:58:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:58:57,627 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:58:57,627 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:58:57,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:57 BoogieIcfgContainer [2019-11-28 02:58:57,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:58:57,629 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 02:58:57,629 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 02:58:57,632 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 02:58:57,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:58:57,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:58:57" (1/3) ... [2019-11-28 02:58:57,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ae90374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:58:57, skipping insertion in model container [2019-11-28 02:58:57,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:58:57,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:57" (2/3) ... [2019-11-28 02:58:57,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ae90374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:58:57, skipping insertion in model container [2019-11-28 02:58:57,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:58:57,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:57" (3/3) ... [2019-11-28 02:58:57,637 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaC9.c [2019-11-28 02:58:57,682 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 02:58:57,682 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 02:58:57,682 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 02:58:57,682 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:58:57,683 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:58:57,683 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 02:58:57,683 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:58:57,683 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 02:58:57,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 02:58:57,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:57,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:57,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:57,721 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:58:57,721 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:57,721 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 02:58:57,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 02:58:57,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:57,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:57,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:57,723 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:58:57,723 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:57,729 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L14-2true [2019-11-28 02:58:57,730 INFO L796 eck$LassoCheckResult]: Loop: 5#L14-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 9#L14true assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 5#L14-2true [2019-11-28 02:58:57,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:57,735 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 02:58:57,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:57,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971701522] [2019-11-28 02:58:57,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:57,843 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:57,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:57,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-28 02:58:57,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:57,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619169374] [2019-11-28 02:58:57,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:57,864 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-28 02:58:57,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:57,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533304140] [2019-11-28 02:58:57,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:57,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:58,012 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:58,014 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:58,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:58,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:58,015 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:58,015 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:58,015 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:58,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:58,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration1_Loop [2019-11-28 02:58:58,025 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:58,026 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:58,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,263 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:58,264 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) [2019-11-28 02:58:58,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:58,274 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 [2019-11-28 02:58:58,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:58,286 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:58,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:58,302 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 [2019-11-28 02:58:58,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:58,311 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:58,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:58,328 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:58,339 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:58,339 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=41} Honda state: {ULTIMATE.start_main_#t~nondet2=41} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2019-11-28 02:58:58,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:58,355 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 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 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 [2019-11-28 02:58:58,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:58,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:58,381 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:58,384 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:58,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:58,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:58,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:58,385 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:58,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:58,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:58,385 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:58,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration1_Loop [2019-11-28 02:58:58,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:58,386 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:58,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,524 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:58,531 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 02:58:58,544 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 [2019-11-28 02:58:58,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:58,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:58,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:58,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:58,554 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:58,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:58:58,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:58,584 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 [2019-11-28 02:58:58,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:58,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:58,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:58,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:58,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:58,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:58:58,605 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 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 [2019-11-28 02:58:58,623 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 [2019-11-28 02:58:58,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:58,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:58,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:58,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:58,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:58,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:58,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:58,632 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 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 [2019-11-28 02:58:58,648 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 [2019-11-28 02:58:58,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:58,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:58,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:58,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:58,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:58,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:58,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:58,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:58:58,669 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 02:58:58,669 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2019-11-28 02:58:58,679 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:58:58,679 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:58:58,680 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:58:58,680 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-28 02:58:58,696 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:58,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:58,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:58,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:58,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:58:58,802 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 [2019-11-28 02:58:58,803 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-28 02:58:58,869 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2019-11-28 02:58:58,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 02:58:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-11-28 02:58:58,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-28 02:58:58,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:58,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 02:58:58,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:58,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-28 02:58:58,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:58,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-11-28 02:58:58,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:58,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2019-11-28 02:58:58,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 02:58:58,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 02:58:58,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-28 02:58:58,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:58,888 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-28 02:58:58,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-28 02:58:58,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-28 02:58:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 02:58:58,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-28 02:58:58,914 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:58:58,915 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:58:58,915 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 02:58:58,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-28 02:58:58,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:58,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:58,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:58,916 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 02:58:58,916 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:58,917 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 72#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 74#L14 [2019-11-28 02:58:58,917 INFO L796 eck$LassoCheckResult]: Loop: 74#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 73#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 74#L14 [2019-11-28 02:58:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:58,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 02:58:58,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:58,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885028594] [2019-11-28 02:58:58,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:58,929 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-11-28 02:58:58,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:58,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785663486] [2019-11-28 02:58:58,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:58,943 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:58,943 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-11-28 02:58:58,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:58,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055598362] [2019-11-28 02:58:58,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:58,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:58,988 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:58,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:58,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:58,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:58,989 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:58,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:58,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:58,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:58,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration2_Loop [2019-11-28 02:58:58,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:58,990 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:58,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:58,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,094 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:59,094 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2019-11-28 02:58:59,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:59,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:59,122 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:59,122 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:59,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:59,140 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,149 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:59,149 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=56, ULTIMATE.start_main_#t~nondet2=56} Honda state: {ULTIMATE.start_main_~random~0=56, ULTIMATE.start_main_#t~nondet2=56} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2019-11-28 02:58:59,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:59,167 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,173 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:59,173 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:59,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:59,196 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:59,196 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2019-11-28 02:58:59,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:59,214 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:59,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:59,239 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,313 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:59,319 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:59,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:59,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:59,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:59,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:59,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:59,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:59,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration2_Loop [2019-11-28 02:58:59,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:59,320 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:59,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,438 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:59,438 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:59,448 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 [2019-11-28 02:58:59,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:59,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:59,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:59,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:59,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:59,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,461 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:59,481 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 [2019-11-28 02:58:59,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:59,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:59,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:59,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:59,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:59,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:59,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,489 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,499 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 [2019-11-28 02:58:59,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:59,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:59,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:59,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:59,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:59,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:58:59,515 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:59,533 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 [2019-11-28 02:58:59,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:59,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:59,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:59,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:59,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:59,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:59,540 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,553 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 [2019-11-28 02:58:59,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:59,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:59,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:59,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:59,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:59,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:59,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:59,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:58:59,565 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:58:59,566 INFO L444 ModelExtractionUtils]: 0 out of 3 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 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 [2019-11-28 02:58:59,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:58:59,571 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:58:59,571 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:58:59,572 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-28 02:58:59,574 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 02:58:59,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:59,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:59,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:59,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:59,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:58:59,642 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 [2019-11-28 02:58:59,642 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 02:58:59,668 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2019-11-28 02:58:59,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:58:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2019-11-28 02:58:59,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-28 02:58:59,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:59,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 02:58:59,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:59,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-28 02:58:59,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:59,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2019-11-28 02:58:59,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:59,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 9 states and 12 transitions. [2019-11-28 02:58:59,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 02:58:59,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 02:58:59,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2019-11-28 02:58:59,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:59,674 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-11-28 02:58:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2019-11-28 02:58:59,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2019-11-28 02:58:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 02:58:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-28 02:58:59,675 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-28 02:58:59,675 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-28 02:58:59,676 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 02:58:59,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-11-28 02:58:59,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:59,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:59,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:59,677 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-11-28 02:58:59,677 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:59,677 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 126#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 127#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 131#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 129#L14 [2019-11-28 02:58:59,677 INFO L796 eck$LassoCheckResult]: Loop: 129#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 130#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 129#L14 [2019-11-28 02:58:59,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:59,678 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2019-11-28 02:58:59,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:59,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590805880] [2019-11-28 02:58:59,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:59,694 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:59,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:59,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2019-11-28 02:58:59,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:59,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753428876] [2019-11-28 02:58:59,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:59,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:59,710 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 1 times [2019-11-28 02:58:59,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:59,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046859016] [2019-11-28 02:58:59,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:59,727 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:59,759 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:59,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:59,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:59,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:59,759 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:59,760 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,760 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:59,760 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:59,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration3_Loop [2019-11-28 02:58:59,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:59,760 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:59,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,856 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:59,856 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2019-11-28 02:58:59,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:59,864 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:59,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:59,877 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,949 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:59,951 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:59,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:59,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:59,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:59,952 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:59,952 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:59,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:59,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:59,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration3_Loop [2019-11-28 02:58:59,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:59,952 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:59,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:59,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:00,047 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:59:00,047 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 02:59:00,054 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 [2019-11-28 02:59:00,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:59:00,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:59:00,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:59:00,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:59:00,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:59:00,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:59:00,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:00,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:59:00,065 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:59:00,065 INFO L444 ModelExtractionUtils]: 0 out of 3 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:59:00,071 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:59:00,071 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:59:00,072 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:59:00,072 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-28 02:59:00,082 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:00,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:00,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:59:00,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:00,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:59:00,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:00,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:59:00,128 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 [2019-11-28 02:59:00,128 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-28 02:59:00,151 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2019-11-28 02:59:00,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:59:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:59:00,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2019-11-28 02:59:00,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 02:59:00,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:00,153 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 02:59:00,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:00,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:59:00,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:00,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:59:00,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:59:00,203 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 02:59:00,203 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-28 02:59:00,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2019-11-28 02:59:00,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:59:00,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:59:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2019-11-28 02:59:00,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 02:59:00,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:00,223 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 02:59:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:00,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:59:00,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:00,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:59:00,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:59:00,296 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 2 loop predicates [2019-11-28 02:59:00,296 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-28 02:59:00,319 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 4 states. [2019-11-28 02:59:00,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:59:00,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:59:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-28 02:59:00,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 02:59:00,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:00,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 02:59:00,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:00,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-28 02:59:00,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:00,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2019-11-28 02:59:00,323 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:59:00,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-11-28 02:59:00,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 02:59:00,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 02:59:00,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 02:59:00,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 02:59:00,324 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:59:00,324 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:59:00,324 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:59:00,324 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 02:59:00,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:59:00,324 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:59:00,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 02:59:00,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:59:00 BoogieIcfgContainer [2019-11-28 02:59:00,332 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 02:59:00,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:59:00,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:59:00,333 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:59:00,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:57" (3/4) ... [2019-11-28 02:59:00,337 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:59:00,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:59:00,340 INFO L168 Benchmark]: Toolchain (without parser) took 3254.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -223.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:59:00,341 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:59:00,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:00,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:00,343 INFO L168 Benchmark]: Boogie Preprocessor took 13.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:59:00,344 INFO L168 Benchmark]: RCFGBuilder took 194.28 ms. Allocated memory is still 1.1 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. [2019-11-28 02:59:00,345 INFO L168 Benchmark]: BuchiAutomizer took 2702.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -81.8 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:00,345 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:59:00,350 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 80.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 194.28 ms. Allocated memory is still 1.1 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 2702.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -81.8 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 32 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf97 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...