./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:33:32,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:33:32,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:33:32,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:33:32,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:33:32,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:33:32,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:33:32,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:33:32,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:33:32,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:33:32,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:33:32,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:33:32,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:33:32,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:33:32,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:33:32,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:33:32,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:33:32,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:33:32,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:33:32,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:33:32,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:33:32,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:33:32,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:33:32,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:33:32,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:33:32,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:33:32,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:33:32,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:33:32,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:33:32,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:33:32,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:33:32,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:33:32,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:33:32,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:33:32,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:33:32,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:33:32,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:33:32,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:33:32,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:33:32,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:33:32,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:33:32,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 10:33:32,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:33:32,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:33:32,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:33:32,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:33:32,741 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:33:32,741 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:33:32,741 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:33:32,742 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:33:32,742 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:33:32,742 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:33:32,742 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:33:32,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:33:32,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:33:32,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:33:32,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:33:32,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:33:32,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:33:32,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:33:32,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:33:32,744 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:33:32,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:33:32,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:33:32,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:33:32,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:33:32,745 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:33:32,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:33:32,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:33:32,746 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:33:32,747 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:33:32,747 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2019-11-20 10:33:32,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:33:32,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:33:32,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:33:32,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:33:32,917 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:33:32,918 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-20 10:33:32,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/data/f295bf90d/4ae0cf783d07483f89969ca919a648ae/FLAGdee63e266 [2019-11-20 10:33:33,375 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:33:33,375 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-20 10:33:33,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/data/f295bf90d/4ae0cf783d07483f89969ca919a648ae/FLAGdee63e266 [2019-11-20 10:33:33,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/data/f295bf90d/4ae0cf783d07483f89969ca919a648ae [2019-11-20 10:33:33,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:33:33,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:33:33,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:33:33,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:33:33,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:33:33,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:33:33" (1/1) ... [2019-11-20 10:33:33,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8f14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:33, skipping insertion in model container [2019-11-20 10:33:33,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:33:33" (1/1) ... [2019-11-20 10:33:33,756 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:33:33,778 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:33:33,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:33:33,994 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:33:34,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:33:34,091 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:33:34,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34 WrapperNode [2019-11-20 10:33:34,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:33:34,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:33:34,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:33:34,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:33:34,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:33:34,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:33:34,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:33:34,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:33:34,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... [2019-11-20 10:33:34,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:33:34,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:33:34,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:33:34,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:33:34,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:33:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:33:34,406 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:33:34,406 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 10:33:34,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:34 BoogieIcfgContainer [2019-11-20 10:33:34,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:33:34,408 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:33:34,408 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:33:34,411 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:33:34,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:33:34,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:33:33" (1/3) ... [2019-11-20 10:33:34,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f7037cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:33:34, skipping insertion in model container [2019-11-20 10:33:34,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:33:34,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:33:34" (2/3) ... [2019-11-20 10:33:34,414 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f7037cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:33:34, skipping insertion in model container [2019-11-20 10:33:34,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:33:34,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:34" (3/3) ... [2019-11-20 10:33:34,416 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-20 10:33:34,458 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:33:34,458 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:33:34,459 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:33:34,459 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:33:34,459 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:33:34,459 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:33:34,459 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:33:34,459 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:33:34,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 10:33:34,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:34,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:33:34,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:33:34,498 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:33:34,498 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 10:33:34,498 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:33:34,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 10:33:34,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:34,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:33:34,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:33:34,500 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:33:34,500 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 10:33:34,507 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 9#L21-2true [2019-11-20 10:33:34,508 INFO L796 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~i~0 < main_~n~0); 3#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 9#L21-2true [2019-11-20 10:33:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:34,513 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-20 10:33:34,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:34,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661627660] [2019-11-20 10:33:34,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:34,631 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:34,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:34,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2019-11-20 10:33:34,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:34,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420731467] [2019-11-20 10:33:34,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:34,646 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:34,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:34,647 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-11-20 10:33:34,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:34,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863117660] [2019-11-20 10:33:34,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:34,667 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:34,719 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:34,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:34,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:34,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:34,721 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:33:34,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:34,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:34,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:34,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2019-11-20 10:33:34,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:34,722 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:34,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:34,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:34,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:34,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:34,939 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:34,940 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:34,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:34,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:33:34,967 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:33:34,967 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:34,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:34,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:33:35,002 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:33:35,002 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:35,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:33:35,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:33:35,014 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:35,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:35,023 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:33:35,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:33:35,226 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:33:35,228 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:35,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:35,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:35,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:35,229 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:33:35,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:35,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:35,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:35,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2019-11-20 10:33:35,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:35,229 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:35,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,324 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:35,328 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:35,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:35,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:35,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:33:35,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:35,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:35,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:35,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:33:35,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:35,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:35,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:35,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:35,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:35,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:35,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:33:35,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:33:35,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:35,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:35,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:35,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:35,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:35,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:33:35,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:33:35,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:35,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:35,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:33:35,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:35,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:35,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:35,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:33:35,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:33:35,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:33:35,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:33:35,456 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:33:35,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:33:35,466 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:33:35,467 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-11-20 10:33:35,474 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:33:35,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:35,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:33:35,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:35,525 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:33:35,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:33:35,540 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 [2019-11-20 10:33:35,541 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-20 10:33:35,580 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2019-11-20 10:33:35,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:33:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:33:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-20 10:33:35,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-20 10:33:35,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:35,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 10:33:35,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:35,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 10:33:35,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:35,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-11-20 10:33:35,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:35,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2019-11-20 10:33:35,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 10:33:35,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-20 10:33:35,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-20 10:33:35,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:33:35,595 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-20 10:33:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-20 10:33:35,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-20 10:33:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-20 10:33:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2019-11-20 10:33:35,617 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-20 10:33:35,617 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-20 10:33:35,617 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:33:35,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2019-11-20 10:33:35,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:35,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:33:35,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:33:35,619 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 10:33:35,619 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 10:33:35,619 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 78#L21-2 assume !!(main_~i~0 < main_~n~0); 72#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 73#L21-2 [2019-11-20 10:33:35,619 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2019-11-20 10:33:35,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:35,619 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2019-11-20 10:33:35,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:35,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434018032] [2019-11-20 10:33:35,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:33:35,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434018032] [2019-11-20 10:33:35,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:33:35,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:33:35,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221125966] [2019-11-20 10:33:35,666 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:33:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:35,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2019-11-20 10:33:35,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:35,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221845240] [2019-11-20 10:33:35,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:35,674 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:35,707 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:35,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:35,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:35,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:35,708 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:33:35,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:35,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:35,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:35,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2019-11-20 10:33:35,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:35,708 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:35,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:35,809 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:35,809 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:35,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:35,823 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:35,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:33:35,829 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:35,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:33:35,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:33:35,851 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:35,869 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:35,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:33:35,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:33:36,044 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:33:36,046 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:36,046 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:36,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:36,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:36,046 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:33:36,046 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,046 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:36,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:36,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2019-11-20 10:33:36,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:36,047 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:36,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,141 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:36,141 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:36,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:36,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:36,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:36,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:36,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:36,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:33:36,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,176 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:36,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:36,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:36,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:36,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:36,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:36,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:33:36,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:33:36,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:36,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:36,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:33:36,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:36,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:36,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:36,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:33:36,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:33:36,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:33:36,242 INFO L444 ModelExtractionUtils]: 0 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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 [2019-11-20 10:33:36,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:33:36,250 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:33:36,250 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:33:36,251 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-11-20 10:33:36,253 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:33:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,293 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:33:36,295 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 [2019-11-20 10:33:36,295 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 10:33:36,306 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2019-11-20 10:33:36,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:33:36,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:33:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 10:33:36,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 10:33:36,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:36,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-20 10:33:36,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:36,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-20 10:33:36,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:36,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-11-20 10:33:36,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:36,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2019-11-20 10:33:36,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-20 10:33:36,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-20 10:33:36,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2019-11-20 10:33:36,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:33:36,313 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-20 10:33:36,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2019-11-20 10:33:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 10:33:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 10:33:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2019-11-20 10:33:36,315 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-20 10:33:36,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:33:36,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:33:36,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:33:36,320 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2019-11-20 10:33:36,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:33:36,332 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-11-20 10:33:36,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:33:36,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-11-20 10:33:36,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:36,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2019-11-20 10:33:36,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-20 10:33:36,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-20 10:33:36,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-20 10:33:36,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:33:36,335 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 10:33:36,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-20 10:33:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-20 10:33:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 10:33:36,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-20 10:33:36,338 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-20 10:33:36,338 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-20 10:33:36,338 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 10:33:36,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-11-20 10:33:36,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 10:33:36,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:33:36,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:33:36,340 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2019-11-20 10:33:36,340 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 10:33:36,340 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2019-11-20 10:33:36,340 INFO L796 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2019-11-20 10:33:36,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:36,341 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2019-11-20 10:33:36,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:36,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968894196] [2019-11-20 10:33:36,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 10:33:36,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968894196] [2019-11-20 10:33:36,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625721347] [2019-11-20 10:33:36,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:33:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 10:33:36,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 10:33:36,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2019-11-20 10:33:36,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922283464] [2019-11-20 10:33:36,437 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:33:36,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:36,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2019-11-20 10:33:36,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:36,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216146051] [2019-11-20 10:33:36,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:36,445 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:36,469 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:36,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:36,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:36,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:36,469 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:33:36,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:36,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:36,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2019-11-20 10:33:36,470 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:36,470 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:36,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,538 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:36,538 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:36,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:36,552 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:36,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:33:36,580 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,742 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:33:36,745 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:36,745 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:36,746 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:36,746 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:36,746 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:33:36,746 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,746 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:36,746 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:36,746 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2019-11-20 10:33:36,746 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:36,746 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:36,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:36,822 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:36,822 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:36,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:36,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:36,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:33:36,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:36,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:36,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:36,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:33:36,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,842 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:33:36,846 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:33:36,846 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:36,851 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:33:36,851 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:33:36,851 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:33:36,851 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-11-20 10:33:36,866 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:36,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,912 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:33:36,913 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 [2019-11-20 10:33:36,913 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 10:33:36,922 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2019-11-20 10:33:36,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:33:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:33:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 10:33:36,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-20 10:33:36,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:36,923 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 10:33:36,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,957 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:33:36,958 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 [2019-11-20 10:33:36,958 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 10:33:36,969 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2019-11-20 10:33:36,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:33:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:33:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 10:33:36,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-20 10:33:36,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:36,970 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 10:33:36,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:36,999 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:33:36,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:33:37,000 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 [2019-11-20 10:33:37,000 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 10:33:37,009 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2019-11-20 10:33:37,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:33:37,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:33:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-20 10:33:37,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-20 10:33:37,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:37,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-20 10:33:37,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:37,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2019-11-20 10:33:37,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:37,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-11-20 10:33:37,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 10:33:37,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2019-11-20 10:33:37,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-20 10:33:37,014 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-20 10:33:37,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2019-11-20 10:33:37,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:33:37,014 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-11-20 10:33:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2019-11-20 10:33:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2019-11-20 10:33:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 10:33:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-20 10:33:37,016 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-20 10:33:37,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:33:37,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:33:37,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:33:37,017 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 4 states. [2019-11-20 10:33:37,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:33:37,026 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-20 10:33:37,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:33:37,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-11-20 10:33:37,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 10:33:37,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2019-11-20 10:33:37,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 10:33:37,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 10:33:37,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2019-11-20 10:33:37,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:33:37,029 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-20 10:33:37,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2019-11-20 10:33:37,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2019-11-20 10:33:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 10:33:37,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-11-20 10:33:37,030 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-11-20 10:33:37,030 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-11-20 10:33:37,030 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 10:33:37,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2019-11-20 10:33:37,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 10:33:37,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:33:37,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:33:37,032 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:33:37,032 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-20 10:33:37,032 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2019-11-20 10:33:37,032 INFO L796 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 370#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 371#L21-2 assume !!(main_~i~0 < main_~n~0); 368#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2019-11-20 10:33:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:37,032 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2019-11-20 10:33:37,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:37,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933211382] [2019-11-20 10:33:37,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:37,040 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:37,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:37,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2019-11-20 10:33:37,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:37,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590106413] [2019-11-20 10:33:37,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:37,054 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:37,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:37,055 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2019-11-20 10:33:37,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:33:37,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532297470] [2019-11-20 10:33:37,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:33:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:33:37,067 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:33:37,108 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:37,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:37,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:37,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:37,108 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:33:37,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:37,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:37,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:37,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2019-11-20 10:33:37,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:37,109 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:37,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,201 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:37,201 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:37,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:33:37,206 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/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) [2019-11-20 10:33:37,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:33:37,218 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:37,380 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:33:37,381 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:33:37,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:33:37,381 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:33:37,381 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:33:37,381 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:33:37,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:37,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:33:37,382 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:33:37,382 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2019-11-20 10:33:37,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:33:37,382 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:33:37,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:33:37,514 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:33:37,514 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:37,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:33:37,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:33:37,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:33:37,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:33:37,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:33:37,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:33:37,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:33:37,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:33:37,525 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:33:37,529 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 10:33:37,529 INFO L444 ModelExtractionUtils]: 0 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_7ccc3c4b-ff5a-431f-b69a-06640177370f/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:33:37,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:33:37,532 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:33:37,532 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:33:37,532 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 10:33:37,533 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:33:37,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:33:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:37,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:33:37,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:33:37,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:33:37,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:33:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:33:37,566 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 10:33:37,567 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2019-11-20 10:33:37,581 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2019-11-20 10:33:37,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:33:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:33:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 10:33:37,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 10:33:37,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:37,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 10:33:37,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:37,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-20 10:33:37,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:33:37,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-11-20 10:33:37,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:33:37,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-20 10:33:37,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 10:33:37,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 10:33:37,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 10:33:37,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:33:37,584 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:33:37,584 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:33:37,585 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:33:37,585 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 10:33:37,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:33:37,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:33:37,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 10:33:37,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:33:37 BoogieIcfgContainer [2019-11-20 10:33:37,592 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:33:37,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:33:37,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:33:37,592 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:33:37,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:34" (3/4) ... [2019-11-20 10:33:37,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:33:37,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:33:37,598 INFO L168 Benchmark]: Toolchain (without parser) took 3863.39 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.0 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -230.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:33:37,598 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:33:37,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:33:37,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:33:37,600 INFO L168 Benchmark]: Boogie Preprocessor took 26.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:33:37,600 INFO L168 Benchmark]: RCFGBuilder took 245.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:33:37,601 INFO L168 Benchmark]: BuchiAutomizer took 3183.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -46.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:33:37,602 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:33:37,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -209.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3183.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -46.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * j + m and consists of 4 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 36 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...