./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.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_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:57:49,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:57:49,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:57:49,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:57:49,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:57:49,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:57:49,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:57:49,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:57:49,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:57:49,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:57:49,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:57:49,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:57:49,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:57:49,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:57:49,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:57:49,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:57:49,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:57:49,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:57:49,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:57:49,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:57:49,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:57:49,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:57:49,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:57:49,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:57:49,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:57:49,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:57:49,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:57:49,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:57:49,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:57:49,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:57:49,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:57:49,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:57:49,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:57:49,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:57:49,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:57:49,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:57:49,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:57:49,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:57:49,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:57:49,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:57:49,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:57:49,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:57:49,485 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:57:49,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:57:49,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:57:49,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:57:49,487 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:57:49,487 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:57:49,487 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:57:49,487 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:57:49,487 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:57:49,488 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:57:49,488 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:57:49,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:57:49,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:57:49,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:57:49,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:57:49,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:57:49,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:57:49,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:57:49,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:57:49,490 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:57:49,490 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:57:49,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:57:49,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:57:49,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:57:49,491 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:57:49,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:57:49,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:57:49,493 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:57:49,496 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:57:49,497 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_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2019-11-15 20:57:49,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:57:49,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:57:49,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:57:49,549 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:57:49,550 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:57:49,550 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2019-11-15 20:57:49,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/data/bba8166a9/ccf3640467ac459493763c99a166ed7e/FLAGd782bb735 [2019-11-15 20:57:49,973 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:57:49,974 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2019-11-15 20:57:49,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/data/bba8166a9/ccf3640467ac459493763c99a166ed7e/FLAGd782bb735 [2019-11-15 20:57:50,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/data/bba8166a9/ccf3640467ac459493763c99a166ed7e [2019-11-15 20:57:50,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:57:50,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:57:50,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:50,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:57:50,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:57:50,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4397ca16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50, skipping insertion in model container [2019-11-15 20:57:50,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,366 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:57:50,384 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:57:50,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:50,544 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:57:50,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:50,638 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:57:50,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50 WrapperNode [2019-11-15 20:57:50,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:50,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:57:50,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:57:50,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:57:50,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:57:50,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:57:50,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:57:50,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:57:50,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... [2019-11-15 20:57:50,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:57:50,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:57:50,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:57:50,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:57:50,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:57:50,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:57:50,895 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:57:50,896 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 20:57:50,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:50 BoogieIcfgContainer [2019-11-15 20:57:50,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:57:50,898 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:57:50,898 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:57:50,901 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:57:50,902 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:57:50,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:57:50" (1/3) ... [2019-11-15 20:57:50,905 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3996e5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:57:50, skipping insertion in model container [2019-11-15 20:57:50,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:57:50,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:50" (2/3) ... [2019-11-15 20:57:50,906 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3996e5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:57:50, skipping insertion in model container [2019-11-15 20:57:50,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:57:50,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:50" (3/3) ... [2019-11-15 20:57:50,910 INFO L371 chiAutomizerObserver]: Analyzing ICFG Cairo_step2-1.c [2019-11-15 20:57:50,973 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:57:50,973 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:57:50,973 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:57:50,974 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:57:50,974 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:57:50,974 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:57:50,974 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:57:50,975 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:57:50,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 20:57:51,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:57:51,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:57:51,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:57:51,028 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:57:51,029 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:57:51,029 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:57:51,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 20:57:51,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:57:51,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:57:51,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:57:51,031 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:57:51,031 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:57:51,041 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 3#L15true assume main_~x~0 > 0; 7#L16-2true [2019-11-15 20:57:51,041 INFO L793 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(0 != main_~x~0 && -1 != main_~x~0);main_~x~0 := main_~x~0 - 2; 7#L16-2true [2019-11-15 20:57:51,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:51,048 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-15 20:57:51,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:51,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170892270] [2019-11-15 20:57:51,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:51,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:51,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:51,147 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:51,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:51,148 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-11-15 20:57:51,149 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:51,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883428268] [2019-11-15 20:57:51,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:51,149 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:51,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:51,163 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:51,165 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2019-11-15 20:57:51,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:51,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381591486] [2019-11-15 20:57:51,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:51,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:51,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:57:51,177 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:57:51,252 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:51,253 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:51,253 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:51,253 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:51,253 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:57:51,253 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,254 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:51,254 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:51,254 INFO L131 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Loop [2019-11-15 20:57:51,254 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:51,255 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:51,293 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 20:57:51,303 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 20:57:51,318 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 20:57:51,497 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:51,498 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:51,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:51,519 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,520 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_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:51,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:51,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,530 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_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:51,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,539 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:51,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:57:51,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:51,566 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [1, 1, 1] Nus: [1, 0] [2019-11-15 20:57:51,581 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:51,581 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:51,581 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:51,581 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:51,581 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:57:51,582 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,582 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:51,582 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:51,582 INFO L131 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2019-11-15 20:57:51,582 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:51,582 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:51,584 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 20:57:51,587 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 20:57:51,591 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 20:57:51,595 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 20:57:51,598 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 20:57:51,767 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:51,767 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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) [2019-11-15 20:57:51,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,785 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 20:57:51,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,800 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,805 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,805 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:51,826 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,826 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:51,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:51,836 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:57:51,836 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/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 20:57:51,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:57:51,845 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c36ed66b-b804-4d0c-8b70-c90ec8e4211a/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:57:51,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:57:51,875 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 20:57:51,880 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:57:51,881 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:57:51,881 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:57:51,881 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:57:51,881 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:57:51,881 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:57:51,881 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:57:51,881 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:57:51,882 INFO L131 ssoRankerPreferences]: Filename of dumped script: Cairo_step2-1.c_Iteration1_Lasso [2019-11-15 20:57:51,882 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:57:51,882 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:57:51,884 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 20:57:51,889 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 20:57:51,893 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 20:57:51,897 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 20:57:51,907 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 20:57:52,011 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:57:52,016 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:57:52,018 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 20:57:52,019 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:52,019 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:52,020 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:52,020 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:52,024 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:57:52,024 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:57:52,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:57:52,031 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 20:57:52,032 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:52,032 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:52,032 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:52,032 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:52,034 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:57:52,035 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:57:52,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:57:52,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:57:52,043 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:52,043 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:57:52,044 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:52,044 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:57:52,044 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:52,045 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:57:52,045 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:57:52,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:57:52,046 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 20:57:52,047 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:57:52,047 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:57:52,047 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-15 20:57:52,047 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:57:52,054 INFO L400 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-15 20:57:52,054 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-15 20:57:52,208 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:57:52,235 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 20:57:52,235 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:57:52,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:57:52,241 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-15 20:57:52,241 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:57:52,242 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 + 1 >= 0] [2019-11-15 20:57:52,247 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 20:57:52,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:52,293 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 20:57:52,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:52,306 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 20:57:52,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:52,306 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 20:57:52,322 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 20:57:52,323 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2019-11-15 20:57:52,395 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 20 states and 23 transitions. Complement of second has 5 states. [2019-11-15 20:57:52,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 20:57:52,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 20:57:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-15 20:57:52,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-15 20:57:52,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:52,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 20:57:52,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:52,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 20:57:52,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:57:52,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2019-11-15 20:57:52,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:57:52,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-11-15 20:57:52,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 20:57:52,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 20:57:52,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 20:57:52,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:57:52,416 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:57:52,416 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:57:52,416 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:57:52,416 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:57:52,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:57:52,417 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:57:52,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 20:57:52,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:57:52 BoogieIcfgContainer [2019-11-15 20:57:52,423 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:57:52,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:57:52,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:57:52,424 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:57:52,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:50" (3/4) ... [2019-11-15 20:57:52,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:57:52,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:57:52,434 INFO L168 Benchmark]: Toolchain (without parser) took 2086.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.1 MB in the beginning and 974.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:52,435 INFO L168 Benchmark]: CDTParser took 0.29 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 20:57:52,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:52,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.18 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 20:57:52,437 INFO L168 Benchmark]: Boogie Preprocessor took 15.79 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 20:57:52,437 INFO L168 Benchmark]: RCFGBuilder took 214.86 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 20:57:52,438 INFO L168 Benchmark]: BuchiAutomizer took 1525.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.0 MB in the end (delta: 138.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:52,439 INFO L168 Benchmark]: Witness Printer took 6.84 ms. Allocated memory is still 1.2 GB. Free memory is still 974.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:52,446 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 293.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.18 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 15.79 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 214.86 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 1525.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.0 MB in the end (delta: 138.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.84 ms. Allocated memory is still 1.2 GB. Free memory is still 974.0 MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf106 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf97 smp100 dnf262 smp40 tf101 neg94 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 195ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...