./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1a5ad591ce856c2d846b6a372eee9518c32c9e01 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:24:07,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:24:07,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:24:07,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:24:07,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:24:07,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:24:07,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:24:07,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:24:07,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:24:07,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:24:07,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:24:07,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:24:07,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:24:07,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:24:07,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:24:07,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:24:07,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:24:07,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:24:07,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:24:07,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:24:07,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:24:07,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:24:07,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:24:07,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:24:07,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:24:07,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:24:07,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:24:07,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:24:07,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:24:07,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:24:07,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:24:07,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:24:07,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:24:07,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:24:07,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:24:07,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:24:07,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:24:07,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:24:07,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:24:07,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:24:07,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:24:07,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:24:07,864 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:24:07,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:24:07,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:24:07,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:24:07,865 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:24:07,865 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:24:07,865 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:24:07,865 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:24:07,866 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:24:07,866 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:24:07,866 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:24:07,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:24:07,866 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:24:07,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:24:07,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:24:07,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:24:07,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:24:07,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:24:07,868 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:24:07,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:24:07,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:24:07,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:24:07,868 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:24:07,869 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:24:07,869 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a5ad591ce856c2d846b6a372eee9518c32c9e01 [2019-12-07 18:24:07,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:24:07,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:24:07,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:24:07,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:24:07,991 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:24:07,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2019-12-07 18:24:08,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/data/a781f3c25/f312d215d2d04ed9a1e1f31f04689dea/FLAGd60aa4a4d [2019-12-07 18:24:08,355 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:24:08,356 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2019-12-07 18:24:08,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/data/a781f3c25/f312d215d2d04ed9a1e1f31f04689dea/FLAGd60aa4a4d [2019-12-07 18:24:08,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/data/a781f3c25/f312d215d2d04ed9a1e1f31f04689dea [2019-12-07 18:24:08,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:24:08,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:24:08,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:24:08,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:24:08,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:24:08,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514aafbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08, skipping insertion in model container [2019-12-07 18:24:08,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:24:08,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:24:08,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:24:08,490 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:24:08,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:24:08,542 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:24:08,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08 WrapperNode [2019-12-07 18:24:08,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:24:08,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:24:08,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:24:08,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:24:08,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:24:08,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:24:08,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:24:08,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:24:08,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... [2019-12-07 18:24:08,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:24:08,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:24:08,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:24:08,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:24:08,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:24:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:24:08,703 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:24:08,703 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 18:24:08,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:24:08 BoogieIcfgContainer [2019-12-07 18:24:08,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:24:08,704 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:24:08,704 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:24:08,706 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:24:08,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:24:08,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:24:08" (1/3) ... [2019-12-07 18:24:08,708 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67fe61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:24:08, skipping insertion in model container [2019-12-07 18:24:08,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:24:08,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:24:08" (2/3) ... [2019-12-07 18:24:08,708 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67fe61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:24:08, skipping insertion in model container [2019-12-07 18:24:08,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:24:08,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:24:08" (3/3) ... [2019-12-07 18:24:08,709 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2019-12-07 18:24:08,744 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:24:08,745 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:24:08,745 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:24:08,745 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:24:08,745 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:24:08,745 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:24:08,745 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:24:08,745 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:24:08,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 18:24:08,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:24:08,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:24:08,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:24:08,772 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:24:08,772 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:24:08,772 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:24:08,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 18:24:08,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:24:08,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:24:08,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:24:08,773 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:24:08,773 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:24:08,778 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2019-12-07 18:24:08,778 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 > 0);main_~y~0 := 0; 3#L12-2true assume !(main_~y~0 < main_~x~0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2019-12-07 18:24:08,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:08,782 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:24:08,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:08,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148733475] [2019-12-07 18:24:08,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,858 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:08,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:08,859 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-12-07 18:24:08,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:08,859 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315567504] [2019-12-07 18:24:08,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:08,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:08,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315567504] [2019-12-07 18:24:08,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:24:08,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:24:08,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591711013] [2019-12-07 18:24:08,899 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 18:24:08,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:24:08,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:24:08,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:24:08,911 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-12-07 18:24:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:08,927 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-12-07 18:24:08,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:24:08,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-12-07 18:24:08,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:24:08,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2019-12-07 18:24:08,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 18:24:08,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 18:24:08,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2019-12-07 18:24:08,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:24:08,934 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-12-07 18:24:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2019-12-07 18:24:08,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-12-07 18:24:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:24:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-12-07 18:24:08,951 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-12-07 18:24:08,951 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-12-07 18:24:08,951 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:24:08,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-12-07 18:24:08,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:24:08,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:24:08,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:24:08,952 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:24:08,952 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:24:08,952 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 29#L10-2 [2019-12-07 18:24:08,952 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 26#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 27#L12-2 assume !(main_~y~0 < main_~x~0); 30#L12-3 main_~x~0 := main_~x~0 - 1; 29#L10-2 [2019-12-07 18:24:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:08,952 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-12-07 18:24:08,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:08,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609770958] [2019-12-07 18:24:08,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:08,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:08,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2019-12-07 18:24:08,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:08,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348693600] [2019-12-07 18:24:08,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,966 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2019-12-07 18:24:08,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:08,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626099031] [2019-12-07 18:24:08,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:08,976 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:09,026 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:24:09,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:24:09,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:24:09,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:24:09,027 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:24:09,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:24:09,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:24:09,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2019-12-07 18:24:09,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:24:09,027 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:24:09,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,112 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:24:09,112 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:24:09,124 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 /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:24:09,132 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 /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,136 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:24:09,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,232 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:24:09,233 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:24:09,233 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:24:09,233 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:24:09,233 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:24:09,233 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:24:09,233 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,233 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:24:09,233 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:24:09,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2019-12-07 18:24:09,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:24:09,234 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:24:09,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,280 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:24:09,283 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,287 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 [2019-12-07 18:24:09,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:09,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:09,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:09,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:09,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:24:09,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:24:09,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,301 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 [2019-12-07 18:24:09,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:09,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:09,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:09,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:09,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:24:09,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:24:09,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,311 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 [2019-12-07 18:24:09,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:09,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:24:09,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:09,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:09,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:09,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:24:09,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:24:09,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:24:09,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:24:09,320 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:24:09,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:24:09,324 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:24:09,324 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 18:24:09,327 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:24:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:09,353 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:24:09,354 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:09,360 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:24:09,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:24:09,372 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 [2019-12-07 18:24:09,373 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 3 states. [2019-12-07 18:24:09,395 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 9 states and 12 transitions. Complement of second has 4 states. [2019-12-07 18:24:09,396 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 [2019-12-07 18:24:09,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:24:09,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 18:24:09,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 18:24:09,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:09,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 18:24:09,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:09,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2019-12-07 18:24:09,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:09,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2019-12-07 18:24:09,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:24:09,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2019-12-07 18:24:09,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 18:24:09,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 18:24:09,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-12-07 18:24:09,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:24:09,400 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-12-07 18:24:09,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-12-07 18:24:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-12-07 18:24:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 18:24:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 18:24:09,402 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 18:24:09,402 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 18:24:09,402 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:24:09,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 18:24:09,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:24:09,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:24:09,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:24:09,403 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:24:09,403 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:24:09,403 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 79#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 75#L12-2 [2019-12-07 18:24:09,403 INFO L796 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 75#L12-2 [2019-12-07 18:24:09,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 18:24:09,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:09,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882160188] [2019-12-07 18:24:09,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:09,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,408 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-12-07 18:24:09,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:09,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394101409] [2019-12-07 18:24:09,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:09,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,413 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-12-07 18:24:09,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:09,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090823371] [2019-12-07 18:24:09,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:09,426 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:24:09,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:24:09,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:24:09,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:24:09,427 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:24:09,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:24:09,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:24:09,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2019-12-07 18:24:09,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:24:09,427 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:24:09,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,460 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:24:09,461 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,468 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:24:09,468 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 /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,476 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:24:09,476 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 /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,480 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:24:09,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,621 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:24:09,622 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:24:09,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:24:09,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:24:09,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:24:09,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:24:09,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:24:09,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:24:09,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2019-12-07 18:24:09,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:24:09,623 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:24:09,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,656 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:24:09,656 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,659 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 [2019-12-07 18:24:09,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:09,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:09,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:09,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:09,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:24:09,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:24:09,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,672 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 [2019-12-07 18:24:09,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:09,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:09,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:09,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:09,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:24:09,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:24:09,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,682 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 [2019-12-07 18:24:09,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:09,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:24:09,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:09,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:09,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:09,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:24:09,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:24:09,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:24:09,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:24:09,689 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:24:09,692 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:24:09,692 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:24:09,692 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 18:24:09,693 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:24:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:09,709 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:24:09,709 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:09,713 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:24:09,713 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:09,714 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:24:09,714 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-12-07 18:24:09,725 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2019-12-07 18:24:09,725 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 [2019-12-07 18:24:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:24:09,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 18:24:09,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 18:24:09,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:09,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 18:24:09,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:09,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 18:24:09,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:09,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-12-07 18:24:09,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:24:09,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2019-12-07 18:24:09,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 18:24:09,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2019-12-07 18:24:09,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2019-12-07 18:24:09,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:24:09,728 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-12-07 18:24:09,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2019-12-07 18:24:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2019-12-07 18:24:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 18:24:09,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-12-07 18:24:09,729 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-12-07 18:24:09,729 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-12-07 18:24:09,729 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:24:09,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-12-07 18:24:09,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:24:09,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:24:09,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:24:09,730 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-12-07 18:24:09,730 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:24:09,730 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 130#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 127#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 128#L12-2 assume !(main_~y~0 < main_~x~0); 132#L12-3 main_~x~0 := main_~x~0 - 1; 131#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 126#L12-2 [2019-12-07 18:24:09,731 INFO L796 eck$LassoCheckResult]: Loop: 126#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 126#L12-2 [2019-12-07 18:24:09,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,731 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2019-12-07 18:24:09,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:09,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941902379] [2019-12-07 18:24:09,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:09,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941902379] [2019-12-07 18:24:09,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405926903] [2019-12-07 18:24:09,756 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:24:09,773 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:24:09,774 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:24:09,774 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:24:09,774 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:09,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:24:09,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 18:24:09,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377111054] [2019-12-07 18:24:09,782 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:24:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:09,782 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-12-07 18:24:09,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:24:09,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853954681] [2019-12-07 18:24:09,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:24:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:24:09,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:24:09,797 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:24:09,797 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:24:09,797 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:24:09,797 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:24:09,797 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:24:09,798 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,798 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:24:09,798 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:24:09,798 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2019-12-07 18:24:09,798 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:24:09,798 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:24:09,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,829 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:24:09,830 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,836 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:24:09,836 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:24:09,843 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:24:09,847 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:09,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:24:09,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:24:09,982 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:24:09,983 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:24:09,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:24:09,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:24:09,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:24:09,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:24:09,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:09,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:24:09,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:24:09,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2019-12-07 18:24:09,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:24:09,984 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:24:09,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:09,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:24:10,019 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:24:10,019 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/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 [2019-12-07 18:24:10,022 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 [2019-12-07 18:24:10,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:10,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:10,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:10,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:10,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:24:10,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:24:10,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:10,032 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 [2019-12-07 18:24:10,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:10,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:10,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:10,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:10,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:24:10,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:24:10,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:10,042 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 [2019-12-07 18:24:10,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:24:10,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:24:10,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:24:10,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:24:10,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:24:10,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:24:10,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:24:10,048 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:24:10,050 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:24:10,050 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1acd101-bca5-48fb-a38e-debb735eedfe/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:24:10,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:24:10,059 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:24:10,059 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:24:10,059 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 18:24:10,061 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:24:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:10,073 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:24:10,073 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:10,076 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:24:10,076 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:10,076 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:24:10,076 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 18:24:10,084 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2019-12-07 18:24:10,084 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 [2019-12-07 18:24:10,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:24:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 18:24:10,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-12-07 18:24:10,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:10,085 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:24:10,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:10,095 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:24:10,096 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:10,098 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:24:10,098 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:10,099 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:24:10,099 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 18:24:10,105 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2019-12-07 18:24:10,105 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 [2019-12-07 18:24:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:24:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 18:24:10,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-12-07 18:24:10,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:10,106 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:24:10,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:24:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:10,118 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:24:10,119 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:24:10,121 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:24:10,121 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:24:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:24:10,122 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:24:10,122 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 18:24:10,130 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2019-12-07 18:24:10,130 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 [2019-12-07 18:24:10,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:24:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-12-07 18:24:10,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2019-12-07 18:24:10,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:10,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 18:24:10,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:10,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 18:24:10,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:24:10,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2019-12-07 18:24:10,133 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:24:10,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-12-07 18:24:10,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:24:10,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:24:10,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:24:10,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:24:10,133 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:24:10,133 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:24:10,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:24:10,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:24:10,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:24:10,133 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 6 states. [2019-12-07 18:24:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:24:10,133 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:24:10,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:24:10,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:24:10,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:24:10,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:24:10,134 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:24:10,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:24:10,134 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:24:10,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:24:10,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:24:10 BoogieIcfgContainer [2019-12-07 18:24:10,138 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:24:10,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:24:10,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:24:10,139 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:24:10,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:24:08" (3/4) ... [2019-12-07 18:24:10,141 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:24:10,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:24:10,143 INFO L168 Benchmark]: Toolchain (without parser) took 1772.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:10,143 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:10,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:10,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:10,144 INFO L168 Benchmark]: Boogie Preprocessor took 13.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:10,144 INFO L168 Benchmark]: RCFGBuilder took 128.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:10,144 INFO L168 Benchmark]: BuchiAutomizer took 1434.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:24:10,145 INFO L168 Benchmark]: Witness Printer took 2.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:24:10,147 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 128.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1434.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax201 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 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...