./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/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 0.1.24-cad4683 [2019-11-15 22:35:27,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:35:27,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:35:27,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:35:27,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:35:27,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:35:27,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:35:27,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:35:27,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:35:27,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:35:27,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:35:27,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:35:27,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:35:27,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:35:27,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:35:27,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:35:27,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:35:27,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:35:27,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:35:27,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:35:27,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:35:27,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:35:27,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:35:27,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:35:27,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:35:27,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:35:27,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:35:27,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:35:27,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:35:27,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:35:27,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:35:27,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:35:27,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:35:27,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:35:27,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:35:27,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:35:27,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:35:27,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:35:27,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:35:27,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:35:27,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:35:27,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 22:35:27,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:35:27,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:35:27,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:35:27,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:35:27,192 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:35:27,192 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:35:27,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:35:27,192 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:35:27,192 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:35:27,193 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:35:27,193 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:35:27,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:35:27,193 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:35:27,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:35:27,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:35:27,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:35:27,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:35:27,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:35:27,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:35:27,195 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:35:27,195 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:35:27,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:35:27,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:35:27,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:35:27,196 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:35:27,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:35:27,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:35:27,209 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:35:27,210 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:35:27,210 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_192f7561-361d-4eee-9eb2-3656f487d55e/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 [2019-11-15 22:35:27,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:35:27,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:35:27,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:35:27,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:35:27,276 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:35:27,277 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-11-15 22:35:27,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/data/6e7ec256a/7174abe7030f4521affe42b3573212b6/FLAG45cd414fd [2019-11-15 22:35:27,758 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:35:27,759 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-11-15 22:35:27,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/data/6e7ec256a/7174abe7030f4521affe42b3573212b6/FLAG45cd414fd [2019-11-15 22:35:28,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/data/6e7ec256a/7174abe7030f4521affe42b3573212b6 [2019-11-15 22:35:28,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:35:28,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:35:28,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:28,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:35:28,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:35:28,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c59f7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28, skipping insertion in model container [2019-11-15 22:35:28,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,128 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:35:28,145 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:35:28,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:28,354 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:35:28,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:35:28,493 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:35:28,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28 WrapperNode [2019-11-15 22:35:28,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:35:28,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:28,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:35:28,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:35:28,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:35:28,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:35:28,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:35:28,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:35:28,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... [2019-11-15 22:35:28,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:35:28,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:35:28,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:35:28,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:35:28,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:35:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:35:28,772 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:35:28,773 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:35:28,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:28 BoogieIcfgContainer [2019-11-15 22:35:28,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:35:28,775 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:35:28,775 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:35:28,779 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:35:28,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:35:28,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:35:28" (1/3) ... [2019-11-15 22:35:28,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350bc61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:35:28, skipping insertion in model container [2019-11-15 22:35:28,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:35:28,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:35:28" (2/3) ... [2019-11-15 22:35:28,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350bc61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:35:28, skipping insertion in model container [2019-11-15 22:35:28,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:35:28,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:28" (3/3) ... [2019-11-15 22:35:28,785 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2019-11-15 22:35:28,832 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:35:28,832 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:35:28,832 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:35:28,833 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:35:28,833 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:35:28,833 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:35:28,833 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:35:28,833 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:35:28,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 22:35:28,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 22:35:28,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:35:28,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:35:28,873 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 22:35:28,873 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:35:28,873 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:35:28,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 22:35:28,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 22:35:28,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:35:28,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:35:28,875 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 22:35:28,875 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:35:28,883 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L17-2true [2019-11-15 22:35:28,883 INFO L793 eck$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 [2019-11-15 22:35:28,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:28,889 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 22:35:28,896 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:28,896 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091308620] [2019-11-15 22:35:28,896 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:28,897 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:28,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:28,981 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:28,982 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-15 22:35:28,982 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:28,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795128836] [2019-11-15 22:35:28,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:28,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:28,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,002 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:29,003 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-15 22:35:29,004 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:29,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140693447] [2019-11-15 22:35:29,004 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,004 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,018 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:29,114 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:29,115 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:29,115 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:29,115 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:29,115 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:35:29,116 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:29,116 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:29,116 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:29,116 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2019-11-15 22:35:29,116 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:29,117 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:29,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,298 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:29,299 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:29,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:29,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:29,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:35:29,328 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_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:29,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:29,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:29,340 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:35:29,340 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_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:29,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:29,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:29,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:35:29,354 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_192f7561-361d-4eee-9eb2-3656f487d55e/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 [2019-11-15 22:35:29,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:29,361 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:29,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:35:29,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:29,388 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:35:29,394 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:29,394 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:29,395 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:29,395 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:29,395 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:35:29,395 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:29,395 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:29,395 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:29,396 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2019-11-15 22:35:29,396 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:29,396 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:29,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:29,507 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:29,512 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:35:29,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:35:29,516 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:35:29,517 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:35:29,517 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:35:29,519 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:35:29,523 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:35:29,524 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:35:29,531 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:35:29,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:35:29,532 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:35:29,533 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:35:29,533 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:35:29,533 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:35:29,534 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:35:29,535 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:35:29,535 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:35:29,542 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:35:29,548 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:35:29,549 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:35:29,551 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:35:29,551 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:35:29,551 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:35:29,552 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2019-11-15 22:35:29,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:35:29,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:29,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:35:29,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:29,614 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:35:29,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:29,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:35:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:29,689 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 [2019-11-15 22:35:29,690 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 4 states. [2019-11-15 22:35:29,781 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. [2019-11-15 22:35:29,782 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 [2019-11-15 22:35:29,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:35:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2019-11-15 22:35:29,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-15 22:35:29,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:29,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-15 22:35:29,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:29,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-15 22:35:29,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:29,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 48 transitions. [2019-11-15 22:35:29,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 22:35:29,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 18 transitions. [2019-11-15 22:35:29,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-15 22:35:29,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-15 22:35:29,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-11-15 22:35:29,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:35:29,799 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-15 22:35:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-11-15 22:35:29,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-15 22:35:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 22:35:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2019-11-15 22:35:29,827 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-15 22:35:29,827 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-15 22:35:29,827 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:35:29,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2019-11-15 22:35:29,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 22:35:29,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:35:29,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:35:29,828 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 22:35:29,829 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-15 22:35:29,829 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 87#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 83#L19-2 [2019-11-15 22:35:29,829 INFO L793 eck$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 [2019-11-15 22:35:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:29,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 22:35:29,830 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:29,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409671876] [2019-11-15 22:35:29,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,841 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:29,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:29,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1506610, now seen corresponding path program 1 times [2019-11-15 22:35:29,842 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:29,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010104317] [2019-11-15 22:35:29,843 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,843 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:29,878 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:29,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:29,879 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2019-11-15 22:35:29,879 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:29,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774835663] [2019-11-15 22:35:29,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,880 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:29,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:29,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774835663] [2019-11-15 22:35:29,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756952726] [2019-11-15 22:35:29,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:35:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:29,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:35:29,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:29,982 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:35:29,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-15 22:35:29,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580856073] [2019-11-15 22:35:30,058 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:30,058 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:30,059 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:30,059 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:30,059 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:35:30,059 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,059 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:30,059 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:30,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2019-11-15 22:35:30,060 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:30,060 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:30,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,189 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:30,189 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/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) [2019-11-15 22:35:30,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:30,197 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,203 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:35:30,203 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_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:30,222 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:35:30,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:30,254 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:35:30,257 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:30,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:30,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:30,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:30,258 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:35:30,258 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,258 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:30,258 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:30,258 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2019-11-15 22:35:30,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:30,259 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:30,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,379 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:30,379 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:35:30,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:35:30,380 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:35:30,380 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:35:30,380 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:35:30,381 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:35:30,381 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:35:30,382 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:35:30,382 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:35:30,392 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:35:30,398 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:35:30,400 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:35:30,401 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:35:30,401 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:35:30,402 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:35:30,402 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2019-11-15 22:35:30,402 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:35:30,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:30,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:35:30,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:30,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:35:30,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:35:30,463 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 22:35:30,464 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-15 22:35:30,497 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. [2019-11-15 22:35:30,498 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 [2019-11-15 22:35:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:35:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-15 22:35:30,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-15 22:35:30,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:30,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-15 22:35:30,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:30,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-15 22:35:30,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:30,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2019-11-15 22:35:30,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:35:30,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 22 transitions. [2019-11-15 22:35:30,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 22:35:30,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 22:35:30,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2019-11-15 22:35:30,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:35:30,504 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2019-11-15 22:35:30,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2019-11-15 22:35:30,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-11-15 22:35:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 22:35:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2019-11-15 22:35:30,510 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2019-11-15 22:35:30,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:35:30,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:35:30,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:35:30,515 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. Second operand 4 states. [2019-11-15 22:35:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:30,544 INFO L93 Difference]: Finished difference Result 17 states and 24 transitions. [2019-11-15 22:35:30,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:35:30,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2019-11-15 22:35:30,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:35:30,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 24 transitions. [2019-11-15 22:35:30,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-15 22:35:30,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 22:35:30,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-11-15 22:35:30,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:35:30,547 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-15 22:35:30,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-11-15 22:35:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-15 22:35:30,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 22:35:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2019-11-15 22:35:30,550 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-11-15 22:35:30,550 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2019-11-15 22:35:30,550 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 22:35:30,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2019-11-15 22:35:30,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:35:30,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:35:30,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:35:30,551 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:35:30,551 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:35:30,552 INFO L791 eck$LassoCheckResult]: Stem: 210#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 205#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 207#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 211#L19-2 [2019-11-15 22:35:30,552 INFO L793 eck$LassoCheckResult]: Loop: 211#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 211#L19-2 [2019-11-15 22:35:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:30,552 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-15 22:35:30,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:30,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890569198] [2019-11-15 22:35:30,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:30,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:30,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:30,585 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:30,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:30,587 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-15 22:35:30,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:30,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247465043] [2019-11-15 22:35:30,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:30,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:30,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:30,599 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2019-11-15 22:35:30,601 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:30,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316314519] [2019-11-15 22:35:30,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:30,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:30,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:30,634 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:30,665 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:30,665 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:30,665 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:30,665 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:30,665 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:35:30,665 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,666 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:30,666 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:30,666 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2019-11-15 22:35:30,666 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:30,666 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:30,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,756 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:30,756 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/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) [2019-11-15 22:35:30,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:30,770 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,776 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:35:30,776 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_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:35:30,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:30,795 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,801 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:35:30,801 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_192f7561-361d-4eee-9eb2-3656f487d55e/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) [2019-11-15 22:35:30,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:30,822 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/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) [2019-11-15 22:35:30,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:35:30,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:30,854 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,857 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:30,857 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:30,857 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:30,858 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:30,858 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:35:30,858 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:30,858 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:30,858 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:30,858 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2019-11-15 22:35:30,858 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:30,859 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:30,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:30,950 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:30,950 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:35:30,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:35:30,951 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:35:30,952 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:35:30,952 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:35:30,952 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:35:30,952 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:35:30,952 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:35:30,953 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:35:30,954 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:35:30,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:35:30,954 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:35:30,955 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:35:30,955 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:35:30,955 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:35:30,955 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:35:30,956 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:35:30,956 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:35:30,959 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:35:30,963 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:35:30,963 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:35:30,964 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:35:30,964 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:35:30,964 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:35:30,964 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2019-11-15 22:35:30,965 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:35:30,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:30,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:35:30,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,000 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:31,001 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:35:31,001 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10 Second operand 2 states. [2019-11-15 22:35:31,013 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. [2019-11-15 22:35:31,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:35:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 22:35:31,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 22:35:31,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 22:35:31,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-15 22:35:31,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 22:35:31,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 46 transitions. [2019-11-15 22:35:31,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:35:31,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 28 states and 39 transitions. [2019-11-15 22:35:31,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-15 22:35:31,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 22:35:31,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2019-11-15 22:35:31,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:35:31,020 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2019-11-15 22:35:31,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2019-11-15 22:35:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-11-15 22:35:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:35:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-11-15 22:35:31,024 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-15 22:35:31,024 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-15 22:35:31,024 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 22:35:31,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2019-11-15 22:35:31,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 22:35:31,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:35:31,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:35:31,026 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2019-11-15 22:35:31,026 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:35:31,026 INFO L791 eck$LassoCheckResult]: Stem: 294#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 287#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 289#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 295#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 296#L19-2 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 292#L19-3 main_~i~0 := 1 + main_~i~0; 293#L17-2 assume !!(main_~i~0 < 5);main_~j~0 := 0; 297#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 298#L19-2 [2019-11-15 22:35:31,026 INFO L793 eck$LassoCheckResult]: Loop: 298#L19-2 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 298#L19-2 [2019-11-15 22:35:31,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:31,027 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 2 times [2019-11-15 22:35:31,027 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:31,027 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871796993] [2019-11-15 22:35:31,027 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:31,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:31,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:31,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871796993] [2019-11-15 22:35:31,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364517543] [2019-11-15 22:35:31,083 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:35:31,122 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:35:31,123 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:35:31,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:31,135 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:35:31,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2019-11-15 22:35:31,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135537271] [2019-11-15 22:35:31,137 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 22:35:31,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:31,137 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-11-15 22:35:31,138 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:35:31,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378413181] [2019-11-15 22:35:31,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:31,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:35:31,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:35:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:35:31,158 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:35:31,176 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:31,176 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:31,176 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:31,176 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:31,176 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:35:31,176 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:31,177 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:31,177 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:31,177 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2019-11-15 22:35:31,177 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:31,177 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:31,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,246 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:31,246 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:35:31,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:35:31,271 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192f7561-361d-4eee-9eb2-3656f487d55e/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 [2019-11-15 22:35:31,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:35:31,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:35:31,299 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:35:31,301 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:35:31,302 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:35:31,302 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:35:31,302 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:35:31,302 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:35:31,302 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:35:31,302 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:35:31,302 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:35:31,303 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2019-11-15 22:35:31,303 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:35:31,303 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:35:31,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:35:31,382 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:35:31,383 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:35:31,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:35:31,384 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:35:31,384 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:35:31,384 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:35:31,384 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:35:31,384 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:35:31,385 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:35:31,385 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:35:31,388 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:35:31,391 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:35:31,391 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:35:31,392 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:35:31,392 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:35:31,392 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:35:31,392 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2019-11-15 22:35:31,393 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:35:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,429 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:31,430 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:35:31,430 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-15 22:35:31,441 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. [2019-11-15 22:35:31,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:35:31,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 22:35:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 22:35:31,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2019-11-15 22:35:31,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,443 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:35:31,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,476 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:31,477 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:35:31,477 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-15 22:35:31,485 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. [2019-11-15 22:35:31,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:35:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 22:35:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 22:35:31,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2019-11-15 22:35:31,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,487 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:35:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:35:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:35:31,518 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:35:31,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:35:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:35:31,519 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:35:31,519 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-15 22:35:31,530 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. [2019-11-15 22:35:31,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:35:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 22:35:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-15 22:35:31,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2019-11-15 22:35:31,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2019-11-15 22:35:31,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 22:35:31,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:35:31,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2019-11-15 22:35:31,536 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:35:31,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2019-11-15 22:35:31,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:35:31,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:35:31,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:35:31,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:35:31,536 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:31,536 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:31,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:35:31,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:35:31,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:35:31,537 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2019-11-15 22:35:31,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:35:31,537 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-15 22:35:31,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 22:35:31,538 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-15 22:35:31,538 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:35:31,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:35:31,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:35:31,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:35:31,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:35:31,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:35:31,538 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:31,538 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:31,539 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:35:31,539 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 22:35:31,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:35:31,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:35:31,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 22:35:31,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:35:31 BoogieIcfgContainer [2019-11-15 22:35:31,546 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:35:31,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:35:31,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:35:31,547 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:35:31,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:35:28" (3/4) ... [2019-11-15 22:35:31,551 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:35:31,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:35:31,554 INFO L168 Benchmark]: Toolchain (without parser) took 3448.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:31,554 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:31,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:31,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:31,564 INFO L168 Benchmark]: Boogie Preprocessor took 17.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:31,565 INFO L168 Benchmark]: RCFGBuilder took 223.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:31,566 INFO L168 Benchmark]: BuchiAutomizer took 2771.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:35:31,566 INFO L168 Benchmark]: Witness Printer took 4.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:35:31,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 384.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2771.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 2.7s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 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: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...