./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c -s /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/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 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:47:04,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:47:04,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:47:04,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:47:04,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:47:04,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:47:04,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:47:04,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:47:04,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:47:04,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:47:04,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:47:04,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:47:04,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:47:04,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:47:04,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:47:04,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:47:04,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:47:04,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:47:04,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:47:04,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:47:04,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:47:04,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:47:04,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:47:04,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:47:04,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:47:04,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:47:04,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:47:04,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:47:04,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:47:04,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:47:04,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:47:04,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:47:04,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:47:04,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:47:04,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:47:04,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:47:04,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:47:04,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:47:04,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:47:04,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:47:04,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:47:04,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 17:47:04,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:47:04,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:47:04,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:47:04,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:47:04,555 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:47:04,555 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:47:04,555 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:47:04,556 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:47:04,556 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:47:04,556 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:47:04,556 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:47:04,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:47:04,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:47:04,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:47:04,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:47:04,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:47:04,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:47:04,558 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:47:04,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:47:04,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:47:04,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:47:04,558 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:47:04,559 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:47:04,559 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_79beddc2-f918-4659-bf0e-ee35335ed6ff/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 -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2019-12-07 17:47:04,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:47:04,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:47:04,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:47:04,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:47:04,669 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:47:04,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-12-07 17:47:04,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/data/d4fb711d8/d8552acfb11344c1aba4b2b1ef1fb038/FLAG78d45de5e [2019-12-07 17:47:05,099 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:47:05,099 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-12-07 17:47:05,104 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/data/d4fb711d8/d8552acfb11344c1aba4b2b1ef1fb038/FLAG78d45de5e [2019-12-07 17:47:05,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/data/d4fb711d8/d8552acfb11344c1aba4b2b1ef1fb038 [2019-12-07 17:47:05,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:47:05,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:47:05,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:47:05,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:47:05,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:47:05,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef5444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05, skipping insertion in model container [2019-12-07 17:47:05,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:47:05,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:47:05,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:47:05,238 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:47:05,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:47:05,291 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:47:05,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05 WrapperNode [2019-12-07 17:47:05,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:47:05,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:47:05,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:47:05,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:47:05,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:47:05,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:47:05,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:47:05,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:47:05,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... [2019-12-07 17:47:05,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:47:05,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:47:05,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:47:05,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:47:05,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:47:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:47:05,453 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:47:05,453 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 17:47:05,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:05 BoogieIcfgContainer [2019-12-07 17:47:05,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:47:05,454 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:47:05,454 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:47:05,457 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:47:05,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:47:05,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:47:05" (1/3) ... [2019-12-07 17:47:05,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e70eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:47:05, skipping insertion in model container [2019-12-07 17:47:05,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:47:05,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:47:05" (2/3) ... [2019-12-07 17:47:05,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e70eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:47:05, skipping insertion in model container [2019-12-07 17:47:05,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:47:05,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:05" (3/3) ... [2019-12-07 17:47:05,460 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2019-12-07 17:47:05,489 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:47:05,489 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:47:05,489 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:47:05,489 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:47:05,489 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:47:05,489 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:47:05,489 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:47:05,489 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:47:05,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 17:47:05,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 17:47:05,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:47:05,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:47:05,515 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:47:05,515 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:47:05,515 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:47:05,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 17:47:05,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 17:47:05,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:47:05,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:47:05,516 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:47:05,516 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:47:05,521 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L12-3true [2019-12-07 17:47:05,521 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-12-07 17:47:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:05,525 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 17:47:05,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:05,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633851505] [2019-12-07 17:47:05,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,594 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:05,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:05,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-12-07 17:47:05,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:05,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493931582] [2019-12-07 17:47:05,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:05,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493931582] [2019-12-07 17:47:05,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:47:05,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:47:05,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674988976] [2019-12-07 17:47:05,636 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:47:05,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:47:05,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:47:05,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:47:05,649 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-12-07 17:47:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:47:05,662 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-12-07 17:47:05,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:47:05,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-12-07 17:47:05,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:47:05,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-12-07 17:47:05,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 17:47:05,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 17:47:05,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-12-07 17:47:05,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:47:05,668 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-12-07 17:47:05,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-12-07 17:47:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-12-07 17:47:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:47:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-12-07 17:47:05,686 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-12-07 17:47:05,686 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-12-07 17:47:05,686 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:47:05,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-12-07 17:47:05,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:47:05,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:47:05,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:47:05,687 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:47:05,687 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:47:05,687 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 27#L12-3 [2019-12-07 17:47:05,687 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-12-07 17:47:05,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:05,688 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-12-07 17:47:05,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:05,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921165869] [2019-12-07 17:47:05,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,692 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:05,693 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-12-07 17:47:05,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:05,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146879408] [2019-12-07 17:47:05,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:05,701 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-12-07 17:47:05,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:05,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146436511] [2019-12-07 17:47:05,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:05,711 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:05,755 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:47:05,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:47:05,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:47:05,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:47:05,756 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:47:05,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:47:05,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:47:05,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-12-07 17:47:05,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:47:05,756 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:47:05,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:05,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:05,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:05,851 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:47:05,852 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:05,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:05,863 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:47:05,863 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_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:05,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:05,871 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:47:05,871 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_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:05,874 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:47:05,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:05,899 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:47:05,900 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:47:05,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:47:05,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:47:05,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:47:05,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:47:05,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,901 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:47:05,901 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:47:05,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-12-07 17:47:05,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:47:05,901 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:47:05,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:05,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:05,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:05,958 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:47:05,961 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:05,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:05,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:05,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:05,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:05,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:47:05,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:47:05,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:05,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:05,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:05,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:05,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:05,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:47:05,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:47:05,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:05,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:05,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:05,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:47:05,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:05,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:05,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:05,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:47:05,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:47:05,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:47:05,998 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 17:47:05,998 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:47:06,007 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:47:06,007 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:47:06,008 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 17:47:06,011 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:47:06,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:06,033 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:47:06,033 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:06,040 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:47:06,041 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:06,067 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 17:47:06,068 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-12-07 17:47:06,090 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2019-12-07 17:47:06,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 17:47:06,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:47:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-12-07 17:47:06,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 17:47:06,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:47:06,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 17:47:06,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:47:06,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 17:47:06,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:47:06,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-12-07 17:47:06,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 17:47:06,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2019-12-07 17:47:06,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 17:47:06,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 17:47:06,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-12-07 17:47:06,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 17:47:06,095 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-12-07 17:47:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-12-07 17:47:06,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-12-07 17:47:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 17:47:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 17:47:06,096 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 17:47:06,096 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 17:47:06,096 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:47:06,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 17:47:06,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 17:47:06,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:47:06,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:47:06,097 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-12-07 17:47:06,097 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:47:06,097 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 80#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 77#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 78#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 76#L12-2 [2019-12-07 17:47:06,097 INFO L796 eck$LassoCheckResult]: Loop: 76#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 76#L12-2 [2019-12-07 17:47:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:06,097 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2019-12-07 17:47:06,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:06,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037042546] [2019-12-07 17:47:06,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:06,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:06,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:06,109 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-12-07 17:47:06,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:06,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118451977] [2019-12-07 17:47:06,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:06,113 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:06,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:06,114 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2019-12-07 17:47:06,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:47:06,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14613081] [2019-12-07 17:47:06,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:47:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:47:06,125 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:47:06,136 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:47:06,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:47:06,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:47:06,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:47:06,137 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:47:06,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:47:06,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:47:06,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2019-12-07 17:47:06,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:47:06,137 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:47:06,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,181 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:47:06,181 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:06,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:06,191 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:47:06,191 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_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:06,195 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:47:06,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:06,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:47:06,215 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=4}, {ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:06,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:06,221 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:47:06,221 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:47:06,226 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:47:06,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:47:06,238 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:47:06,239 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:47:06,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:47:06,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:47:06,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:47:06,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:47:06,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:47:06,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:47:06,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2019-12-07 17:47:06,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:47:06,240 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:47:06,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:47:06,285 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:47:06,285 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:06,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:06,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:06,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:06,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:06,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:47:06,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:47:06,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:06,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:06,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:47:06,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:06,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:06,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:06,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:47:06,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:47:06,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:06,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:06,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:06,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:06,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:06,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:47:06,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:47:06,316 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 17:47:06,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:47:06,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:47:06,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:47:06,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:47:06,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:47:06,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:47:06,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:47:06,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:47:06,328 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 17:47:06,328 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79beddc2-f918-4659-bf0e-ee35335ed6ff/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:47:06,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:47:06,331 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:47:06,332 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:47:06,332 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 17:47:06,333 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:47:06,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:47:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:06,348 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:47:06,348 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:47:06,353 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:47:06,353 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:47:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:47:06,353 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 17:47:06,354 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-12-07 17:47:06,362 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2019-12-07 17:47:06,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 17:47:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 17:47:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-12-07 17:47:06,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 17:47:06,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:47:06,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2019-12-07 17:47:06,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:47:06,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 17:47:06,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:47:06,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-12-07 17:47:06,365 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:47:06,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-12-07 17:47:06,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:47:06,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:47:06,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:47:06,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:47:06,366 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:47:06,366 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:47:06,366 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:47:06,366 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:47:06,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:47:06,366 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:47:06,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:47:06,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:47:06 BoogieIcfgContainer [2019-12-07 17:47:06,371 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:47:06,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:47:06,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:47:06,371 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:47:06,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:47:05" (3/4) ... [2019-12-07 17:47:06,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:47:06,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:47:06,376 INFO L168 Benchmark]: Toolchain (without parser) took 1259.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 904.3 MB in the end (delta: 40.4 MB). Peak memory consumption was 168.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:06,376 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:47:06,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:06,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:47:06,378 INFO L168 Benchmark]: Boogie Preprocessor took 11.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:47:06,378 INFO L168 Benchmark]: RCFGBuilder took 130.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:06,379 INFO L168 Benchmark]: BuchiAutomizer took 916.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.3 MB in the end (delta: 201.4 MB). Peak memory consumption was 201.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:47:06,379 INFO L168 Benchmark]: Witness Printer took 3.17 ms. Allocated memory is still 1.2 GB. Free memory is still 904.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:47:06,382 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.90 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 11.88 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 130.13 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 916.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.3 MB in the end (delta: 201.4 MB). Peak memory consumption was 201.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.17 ms. Allocated memory is still 1.2 GB. Free memory is still 904.3 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...