./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/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 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:18:04,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:18:04,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:18:04,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:18:04,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:18:04,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:18:04,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:18:04,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:18:04,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:18:04,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:18:04,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:18:04,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:18:04,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:18:04,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:18:04,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:18:04,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:18:04,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:18:04,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:18:04,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:18:04,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:18:04,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:18:04,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:18:04,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:18:04,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:18:04,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:18:04,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:18:04,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:18:04,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:18:04,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:18:04,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:18:04,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:18:04,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:18:04,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:18:04,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:18:04,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:18:04,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:18:04,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:18:04,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:18:04,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:18:04,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:18:04,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:18:04,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:18:04,791 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:18:04,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:18:04,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:18:04,792 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:18:04,792 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:18:04,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:18:04,793 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:18:04,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:18:04,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:18:04,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:18:04,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:18:04,794 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:18:04,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:18:04,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:18:04,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:18:04,795 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:18:04,795 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:18:04,795 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_99318365-aeeb-4338-b158-ead9004819bb/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 -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2019-12-07 18:18:04,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:18:04,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:18:04,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:18:04,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:18:04,907 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:18:04,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-12-07 18:18:04,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/data/ebd24dd16/da2e8c41a1264a0bbf4ee5284524aacf/FLAGc8ef4c713 [2019-12-07 18:18:05,370 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:18:05,371 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-12-07 18:18:05,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/data/ebd24dd16/da2e8c41a1264a0bbf4ee5284524aacf/FLAGc8ef4c713 [2019-12-07 18:18:05,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/data/ebd24dd16/da2e8c41a1264a0bbf4ee5284524aacf [2019-12-07 18:18:05,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:18:05,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:18:05,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:18:05,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:18:05,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:18:05,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d2714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05, skipping insertion in model container [2019-12-07 18:18:05,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:18:05,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:18:05,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:18:05,511 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:18:05,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:18:05,560 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:18:05,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05 WrapperNode [2019-12-07 18:18:05,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:18:05,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:18:05,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:18:05,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:18:05,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:18:05,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:18:05,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:18:05,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:18:05,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... [2019-12-07 18:18:05,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:18:05,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:18:05,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:18:05,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:18:05,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:18:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:18:05,715 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:18:05,715 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 18:18:05,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:05 BoogieIcfgContainer [2019-12-07 18:18:05,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:18:05,716 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:18:05,716 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:18:05,718 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:18:05,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:05,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:18:05" (1/3) ... [2019-12-07 18:18:05,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b1f990f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:18:05, skipping insertion in model container [2019-12-07 18:18:05,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:05,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:18:05" (2/3) ... [2019-12-07 18:18:05,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b1f990f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:18:05, skipping insertion in model container [2019-12-07 18:18:05,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:18:05,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:05" (3/3) ... [2019-12-07 18:18:05,721 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-12-07 18:18:05,750 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:18:05,751 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:18:05,751 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:18:05,751 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:18:05,751 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:18:05,751 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:18:05,751 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:18:05,751 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:18:05,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 18:18:05,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:18:05,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:05,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:05,776 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:18:05,776 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:18:05,776 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:18:05,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 18:18:05,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:18:05,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:05,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:05,777 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:18:05,777 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:18:05,782 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L17-2true [2019-12-07 18:18:05,782 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~i~0 < 5);main_~j~0 := 0; 6#L19-2true assume !(main_~i~0 > 2 && main_~j~0 <= 9); 5#L19-3true main_~i~0 := 1 + main_~i~0; 3#L17-2true [2019-12-07 18:18:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:05,786 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:18:05,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:05,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848855156] [2019-12-07 18:18:05,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:05,854 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:05,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:05,855 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-12-07 18:18:05,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:05,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344595834] [2019-12-07 18:18:05,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:05,866 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:05,868 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-12-07 18:18:05,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:05,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991114285] [2019-12-07 18:18:05,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:05,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:05,918 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:05,919 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:05,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:05,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:05,919 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:18:05,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:05,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:05,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:05,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2019-12-07 18:18:05,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:05,920 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:05,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:05,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:05,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:05,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,011 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,012 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,025 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:18:06,025 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_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:18:06,033 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_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,041 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:18:06,041 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0} Honda state: {ULTIMATE.start_main_~j~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,045 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:18:06,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:18:06,060 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,060 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,060 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:18:06,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2019-12-07 18:18:06,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,061 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,112 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,116 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:18:06,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:18:06,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:18:06,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:18:06,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:18:06,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:18:06,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:18:06,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:18:06,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:18:06,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:18:06,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:18:06,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:18:06,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:18:06,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:18:06,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:18:06,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:18:06,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:18:06,142 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,146 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:18:06,146 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:18:06,146 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:18:06,147 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2019-12-07 18:18:06,150 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:18:06,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,176 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,183 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,183 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:18:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:06,224 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 18:18:06,225 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 4 states. [2019-12-07 18:18:06,276 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 4 states. Result 30 states and 48 transitions. Complement of second has 9 states. [2019-12-07 18:18:06,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 18:18:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:18:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2019-12-07 18:18:06,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 18:18:06,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 18:18:06,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 18:18:06,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 48 transitions. [2019-12-07 18:18:06,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:18:06,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 18 transitions. [2019-12-07 18:18:06,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 18:18:06,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 18:18:06,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-12-07 18:18:06,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:18:06,287 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-12-07 18:18:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-12-07 18:18:06,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-12-07 18:18:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 18:18:06,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2019-12-07 18:18:06,304 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-12-07 18:18:06,304 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-12-07 18:18:06,304 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:18:06,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2019-12-07 18:18:06,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:18:06,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:06,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:06,305 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:18:06,305 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:18:06,306 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 87#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 83#L19-2 [2019-12-07 18:18:06,306 INFO L796 eck$LassoCheckResult]: Loop: 83#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 90#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 88#L19-3 main_~i~0 := 1 + main_~i~0; 82#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 83#L19-2 [2019-12-07 18:18:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 18:18:06,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106196720] [2019-12-07 18:18:06,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,311 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:06,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1506610, now seen corresponding path program 1 times [2019-12-07 18:18:06,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513898771] [2019-12-07 18:18:06,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,318 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:06,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,319 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2019-12-07 18:18:06,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875095917] [2019-12-07 18:18:06,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:06,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875095917] [2019-12-07 18:18:06,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054438883] [2019-12-07 18:18:06,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:18:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,366 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,366 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:06,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:18:06,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-12-07 18:18:06,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86105666] [2019-12-07 18:18:06,412 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,412 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,413 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:18:06,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2019-12-07 18:18:06,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,413 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,467 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,467 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,473 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:18:06,474 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_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,477 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:18:06,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:18:06,495 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:18:06,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2019-12-07 18:18:06,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,496 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,552 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,552 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:18:06,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:18:06,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:18:06,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:18:06,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:18:06,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:18:06,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:18:06,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:18:06,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:18:06,565 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:18:06,565 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,568 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:18:06,568 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:18:06,568 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:18:06,568 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2019-12-07 18:18:06,570 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:18:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,585 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,585 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,590 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,590 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:18:06,600 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:18:06,600 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-12-07 18:18:06,620 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 22 states and 31 transitions. Complement of second has 6 states. [2019-12-07 18:18:06,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:18:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:18:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-12-07 18:18:06,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 18:18:06,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-12-07 18:18:06,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2019-12-07 18:18:06,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2019-12-07 18:18:06,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:18:06,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 22 transitions. [2019-12-07 18:18:06,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 18:18:06,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 18:18:06,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2019-12-07 18:18:06,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:18:06,624 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2019-12-07 18:18:06,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2019-12-07 18:18:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-12-07 18:18:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 18:18:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2019-12-07 18:18:06,626 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2019-12-07 18:18:06,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:18:06,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:18:06,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:18:06,629 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. Second operand 4 states. [2019-12-07 18:18:06,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:18:06,644 INFO L93 Difference]: Finished difference Result 17 states and 24 transitions. [2019-12-07 18:18:06,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:18:06,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2019-12-07 18:18:06,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:18:06,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 24 transitions. [2019-12-07 18:18:06,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 18:18:06,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 18:18:06,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-12-07 18:18:06,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:18:06,646 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 18:18:06,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-12-07 18:18:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 18:18:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 18:18:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2019-12-07 18:18:06,648 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-12-07 18:18:06,648 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-12-07 18:18:06,648 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:18:06,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2019-12-07 18:18:06,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:18:06,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:06,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:06,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:18:06,649 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:18:06,649 INFO L794 eck$LassoCheckResult]: Stem: 210#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 205#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 207#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 211#L19-2 [2019-12-07 18:18:06,650 INFO L796 eck$LassoCheckResult]: Loop: 211#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 211#L19-2 [2019-12-07 18:18:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,650 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-12-07 18:18:06,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785145131] [2019-12-07 18:18:06,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:06,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,656 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-12-07 18:18:06,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146015316] [2019-12-07 18:18:06,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,661 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,661 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2019-12-07 18:18:06,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130690698] [2019-12-07 18:18:06,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,668 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:06,679 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,679 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:18:06,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,679 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2019-12-07 18:18:06,679 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,680 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,717 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,717 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,723 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:18:06,723 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:18:06,735 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=3} Honda state: {ULTIMATE.start_main_~i~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,739 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:18:06,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,752 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:18:06,753 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,753 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,753 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,753 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:18:06,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2019-12-07 18:18:06,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,754 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,791 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,791 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:18:06,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:18:06,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:18:06,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:18:06,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:18:06,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:18:06,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:18:06,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:18:06,797 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:18:06,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:18:06,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:18:06,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:18:06,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:18:06,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:18:06,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:18:06,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:18:06,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:18:06,810 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:18:06,810 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:18:06,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:18:06,818 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:18:06,818 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2019-12-07 18:18:06,820 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:18:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,832 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,833 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,835 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:06,836 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:18:06,836 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10 Second operand 2 states. [2019-12-07 18:18:06,844 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 34 states and 46 transitions. Complement of second has 5 states. [2019-12-07 18:18:06,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:18:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:18:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-12-07 18:18:06,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 18:18:06,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 18:18:06,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 18:18:06,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:06,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 46 transitions. [2019-12-07 18:18:06,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:18:06,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 28 states and 39 transitions. [2019-12-07 18:18:06,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 18:18:06,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 18:18:06,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2019-12-07 18:18:06,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:18:06,849 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2019-12-07 18:18:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2019-12-07 18:18:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-12-07 18:18:06,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 18:18:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-12-07 18:18:06,851 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-12-07 18:18:06,851 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-12-07 18:18:06,851 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:18:06,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2019-12-07 18:18:06,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:18:06,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:18:06,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:18:06,852 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2019-12-07 18:18:06,852 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:18:06,852 INFO L794 eck$LassoCheckResult]: Stem: 294#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 287#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 289#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 295#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 296#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 292#L19-3 main_~i~0 := 1 + main_~i~0; 293#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 297#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 298#L19-2 [2019-12-07 18:18:06,852 INFO L796 eck$LassoCheckResult]: Loop: 298#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 298#L19-2 [2019-12-07 18:18:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 2 times [2019-12-07 18:18:06,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449393452] [2019-12-07 18:18:06,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:06,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449393452] [2019-12-07 18:18:06,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155698531] [2019-12-07 18:18:06,879 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:18:06,896 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:18:06,896 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:18:06,896 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:18:06,896 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:06,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:18:06,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-12-07 18:18:06,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834477779] [2019-12-07 18:18:06,900 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:18:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:06,901 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-12-07 18:18:06,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:18:06,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671198767] [2019-12-07 18:18:06,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:18:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:18:06,904 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:18:06,913 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,913 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,913 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:18:06,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2019-12-07 18:18:06,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,913 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,943 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,943 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:18:06,946 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:18:06,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:18:06,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:18:06,959 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:18:06,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:18:06,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:18:06,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:18:06,959 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:18:06,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:18:06,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:18:06,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2019-12-07 18:18:06,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:18:06,960 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:18:06,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:18:06,990 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:18:06,990 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:18:06,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:18:06,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:18:06,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:18:06,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:18:06,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:18:06,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:18:06,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:18:06,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:18:06,998 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:18:06,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:18:06,999 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99318365-aeeb-4338-b158-ead9004819bb/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 [2019-12-07 18:18:07,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:18:07,002 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:18:07,002 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:18:07,002 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2019-12-07 18:18:07,003 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:18:07,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:07,016 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:18:07,016 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:07,018 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:18:07,018 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:07,019 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:18:07,019 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-12-07 18:18:07,024 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 43 transitions. Complement of second has 5 states. [2019-12-07 18:18:07,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:18:07,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:18:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-12-07 18:18:07,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2019-12-07 18:18:07,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:07,025 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:18:07,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:07,036 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:18:07,037 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:07,039 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:18:07,039 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:07,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:18:07,040 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-12-07 18:18:07,045 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 43 transitions. Complement of second has 5 states. [2019-12-07 18:18:07,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:18:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:18:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-12-07 18:18:07,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2019-12-07 18:18:07,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:07,046 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:18:07,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:18:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:07,058 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:18:07,058 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:18:07,061 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:18:07,061 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:18:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:18:07,061 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:18:07,061 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-12-07 18:18:07,067 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 25 states and 34 transitions. Complement of second has 4 states. [2019-12-07 18:18:07,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:18:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:18:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-12-07 18:18:07,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2019-12-07 18:18:07,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:07,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2019-12-07 18:18:07,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:07,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2019-12-07 18:18:07,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:18:07,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2019-12-07 18:18:07,069 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:18:07,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2019-12-07 18:18:07,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:18:07,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:18:07,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:18:07,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:18:07,070 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:18:07,070 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:18:07,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:18:07,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:18:07,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:18:07,070 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2019-12-07 18:18:07,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:18:07,070 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 18:18:07,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:18:07,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:18:07,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:18:07,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:18:07,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:18:07,071 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:18:07,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:18:07,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:18:07,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:18:07,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:18:07 BoogieIcfgContainer [2019-12-07 18:18:07,075 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:18:07,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:18:07,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:18:07,076 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:18:07,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:18:05" (3/4) ... [2019-12-07 18:18:07,078 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:18:07,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:18:07,079 INFO L168 Benchmark]: Toolchain (without parser) took 1691.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -64.3 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:18:07,080 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:18:07,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:18:07,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:18:07,081 INFO L168 Benchmark]: Boogie Preprocessor took 11.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:18:07,081 INFO L168 Benchmark]: RCFGBuilder took 123.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:18:07,082 INFO L168 Benchmark]: BuchiAutomizer took 1359.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:18:07,082 INFO L168 Benchmark]: Witness Printer took 2.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:18:07,085 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.57 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1359.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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 -2 * i + 5 and consists of 6 locations. One deterministic module has affine ranking function -2 * i + 7 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 38 SDtfs, 38 SDslu, 13 SDs, 0 SdLazy, 59 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax181 hnf99 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp94 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...