./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 0455ba49274114922cfe1b7739d9cb0a89e6c868 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:58:14,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:58:14,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:58:14,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:58:14,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:58:14,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:58:14,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:58:14,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:58:14,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:58:14,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:58:14,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:58:14,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:58:14,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:58:14,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:58:14,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:58:14,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:58:14,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:58:14,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:58:14,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:58:14,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:58:14,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:58:14,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:58:14,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:58:14,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:58:14,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:58:14,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:58:14,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:58:14,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:58:14,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:58:14,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:58:14,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:58:14,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:58:14,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:58:14,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:58:14,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:58:14,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:58:14,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:58:14,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:58:14,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:58:14,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:58:14,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:58:14,372 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:58:14,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:58:14,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:58:14,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:58:14,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:58:14,399 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:58:14,399 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:58:14,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:58:14,400 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:58:14,400 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:58:14,400 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:58:14,400 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:58:14,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:58:14,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:58:14,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:58:14,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:58:14,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:58:14,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:58:14,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:58:14,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:58:14,402 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:58:14,402 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:58:14,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:58:14,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:58:14,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:58:14,403 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:58:14,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:58:14,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:58:14,403 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:58:14,404 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:58:14,404 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_6a377e37-91d7-47de-aae5-e2c12467106a/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 -> 0455ba49274114922cfe1b7739d9cb0a89e6c868 [2019-11-25 08:58:14,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:58:14,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:58:14,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:58:14,593 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:58:14,593 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:58:14,594 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-11-25 08:58:14,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/data/48bc2d65a/17f3921860ae4dc6a783616159996ab8/FLAGc3ea59e6e [2019-11-25 08:58:15,029 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:58:15,030 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-11-25 08:58:15,034 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/data/48bc2d65a/17f3921860ae4dc6a783616159996ab8/FLAGc3ea59e6e [2019-11-25 08:58:15,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/data/48bc2d65a/17f3921860ae4dc6a783616159996ab8 [2019-11-25 08:58:15,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:58:15,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:58:15,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:15,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:58:15,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:58:15,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449533ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15, skipping insertion in model container [2019-11-25 08:58:15,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:58:15,076 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:58:15,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:15,238 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:58:15,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:58:15,330 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:58:15,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15 WrapperNode [2019-11-25 08:58:15,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:58:15,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:15,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:58:15,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:58:15,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:58:15,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:58:15,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:58:15,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:58:15,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... [2019-11-25 08:58:15,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:58:15,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:58:15,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:58:15,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:58:15,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:58:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:58:15,552 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:58:15,552 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:58:15,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:15 BoogieIcfgContainer [2019-11-25 08:58:15,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:58:15,554 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:58:15,554 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:58:15,557 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:58:15,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:15,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:58:15" (1/3) ... [2019-11-25 08:58:15,559 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21a661d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:15, skipping insertion in model container [2019-11-25 08:58:15,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:15,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:58:15" (2/3) ... [2019-11-25 08:58:15,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21a661d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:58:15, skipping insertion in model container [2019-11-25 08:58:15,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:58:15,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:15" (3/3) ... [2019-11-25 08:58:15,561 INFO L371 chiAutomizerObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2019-11-25 08:58:15,601 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:58:15,601 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:58:15,602 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:58:15,602 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:58:15,602 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:58:15,602 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:58:15,602 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:58:15,602 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:58:15,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:58:15,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:15,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:15,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:15,639 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:58:15,639 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:58:15,639 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:58:15,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:58:15,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:15,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:15,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:15,641 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:58:15,641 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:58:15,648 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 6#L18-2true [2019-11-25 08:58:15,649 INFO L796 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~y~0 >= 0); 9#L19true assume main_~x~0 <= 50;main_~y~0 := 1 + main_~y~0; 7#L19-2true main_~x~0 := 1 + main_~x~0; 6#L18-2true [2019-11-25 08:58:15,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:15,655 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:58:15,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:15,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115961994] [2019-11-25 08:58:15,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:15,733 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:15,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:15,734 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2019-11-25 08:58:15,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:15,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989589084] [2019-11-25 08:58:15,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:15,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:15,752 INFO L82 PathProgramCache]: Analyzing trace with hash 963342, now seen corresponding path program 1 times [2019-11-25 08:58:15,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:15,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612672031] [2019-11-25 08:58:15,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:15,766 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:15,831 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:15,832 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:15,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:15,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:15,833 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:58:15,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:15,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:15,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:15,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration1_Loop [2019-11-25 08:58:15,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:15,834 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:15,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:15,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:15,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:15,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,020 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:16,021 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:58:16,037 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:16,038 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_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:58:16,061 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:16,061 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_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,066 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:58:16,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:58:16,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:16,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=1}, {ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=0}] Lambdas: [1, 7, 7] Nus: [1, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,114 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:58:16,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:58:16,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:58:16,134 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:16,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:16,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:16,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:16,135 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:16,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:16,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:16,136 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration1_Loop [2019-11-25 08:58:16,136 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:16,136 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:16,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,265 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:16,269 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,288 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 [2019-11-25 08:58:16,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:16,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:16,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:16,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:16,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:16,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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) [2019-11-25 08:58:16,328 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 [2019-11-25 08:58:16,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:16,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:16,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:16,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:16,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:16,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,356 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 [2019-11-25 08:58:16,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:16,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:16,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:16,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:16,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:16,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:16,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:16,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:16,378 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 [2019-11-25 08:58:16,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:16,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:16,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:16,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:16,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:16,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:16,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:16,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:16,389 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:58:16,389 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:16,404 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:58:16,404 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,404 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 101 Supporting invariants [] [2019-11-25 08:58:16,408 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:58:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:16,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:16,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:16,462 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:16,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:16,500 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:16,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 4 states. [2019-11-25 08:58:16,549 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 4 states. Result 25 states and 35 transitions. Complement of second has 7 states. [2019-11-25 08:58:16,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:58:16,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-25 08:58:16,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-25 08:58:16,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:16,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-25 08:58:16,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:16,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-25 08:58:16,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:16,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2019-11-25 08:58:16,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:16,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 14 transitions. [2019-11-25 08:58:16,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:58:16,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-25 08:58:16,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-25 08:58:16,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:58:16,565 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-25 08:58:16,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-25 08:58:16,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-25 08:58:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-25 08:58:16,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-25 08:58:16,591 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-25 08:58:16,592 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-25 08:58:16,592 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:58:16,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-25 08:58:16,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:16,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:16,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:16,593 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:58:16,594 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:58:16,594 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 77#L18-2 assume !!(main_~y~0 >= 0); 73#L19 [2019-11-25 08:58:16,594 INFO L796 eck$LassoCheckResult]: Loop: 73#L19 assume !(main_~x~0 <= 50);main_~y~0 := main_~y~0 - 1; 78#L19-2 main_~x~0 := 1 + main_~x~0; 72#L18-2 assume !!(main_~y~0 >= 0); 73#L19 [2019-11-25 08:58:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:16,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-25 08:58:16,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:16,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121303694] [2019-11-25 08:58:16,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:16,601 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:16,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:16,602 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2019-11-25 08:58:16,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:16,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923029264] [2019-11-25 08:58:16,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:16,610 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:16,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:16,611 INFO L82 PathProgramCache]: Analyzing trace with hash 29865534, now seen corresponding path program 1 times [2019-11-25 08:58:16,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:16,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022004899] [2019-11-25 08:58:16,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:16,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022004899] [2019-11-25 08:58:16,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:58:16,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:58:16,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884644571] [2019-11-25 08:58:16,670 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:16,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:16,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:16,670 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:16,670 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:58:16,670 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,670 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:16,670 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:16,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration2_Loop [2019-11-25 08:58:16,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:16,671 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:16,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,757 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:16,758 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,766 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,771 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:16,772 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_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,791 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:16,797 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_6a377e37-91d7-47de-aae5-e2c12467106a/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) [2019-11-25 08:58:16,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,812 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:58:16,832 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,844 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:58:16,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=51} Honda state: {ULTIMATE.start_main_~x~0=51} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:16,864 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:16,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:58:16,883 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,921 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:58:16,932 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:16,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:16,932 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:16,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:16,932 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:16,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:16,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:16,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:16,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration2_Loop [2019-11-25 08:58:16,933 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:16,933 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:16,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:16,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,028 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:17,028 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,042 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 [2019-11-25 08:58:17,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:17,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:17,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:17,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:17,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:17,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:17,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/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 [2019-11-25 08:58:17,062 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 [2019-11-25 08:58:17,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:17,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:17,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:17,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:17,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:17,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:17,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:58:17,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,088 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 [2019-11-25 08:58:17,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:17,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:17,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:17,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:17,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:58:17,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:58:17,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:17,132 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 [2019-11-25 08:58:17,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:17,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:17,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:17,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:17,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:17,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:17,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,140 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:17,142 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:58:17,143 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_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,159 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:17,159 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:58:17,159 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:17,159 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-25 08:58:17,165 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:58:17,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,197 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:17,216 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:17,216 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-25 08:58:17,242 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2019-11-25 08:58:17,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-25 08:58:17,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-25 08:58:17,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-25 08:58:17,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-25 08:58:17,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-11-25 08:58:17,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:17,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 16 transitions. [2019-11-25 08:58:17,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:58:17,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:58:17,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-11-25 08:58:17,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:58:17,247 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-25 08:58:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-11-25 08:58:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2019-11-25 08:58:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-25 08:58:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-25 08:58:17,249 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-25 08:58:17,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:17,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:58:17,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:58:17,253 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2019-11-25 08:58:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:17,264 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-25 08:58:17,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:58:17,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-11-25 08:58:17,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:17,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2019-11-25 08:58:17,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:58:17,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:58:17,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2019-11-25 08:58:17,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:58:17,267 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-25 08:58:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2019-11-25 08:58:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-25 08:58:17,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-25 08:58:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-25 08:58:17,269 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-25 08:58:17,269 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-25 08:58:17,269 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:58:17,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-11-25 08:58:17,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:58:17,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:58:17,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:58:17,270 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2019-11-25 08:58:17,271 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:58:17,271 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 162#L18-2 assume !!(main_~y~0 >= 0); 163#L19 assume main_~x~0 <= 50;main_~y~0 := 1 + main_~y~0; 171#L19-2 main_~x~0 := 1 + main_~x~0; 172#L18-2 assume !!(main_~y~0 >= 0); 170#L19 [2019-11-25 08:58:17,271 INFO L796 eck$LassoCheckResult]: Loop: 170#L19 assume !(main_~x~0 <= 50);main_~y~0 := main_~y~0 - 1; 167#L19-2 main_~x~0 := 1 + main_~x~0; 168#L18-2 assume !!(main_~y~0 >= 0); 170#L19 [2019-11-25 08:58:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,271 INFO L82 PathProgramCache]: Analyzing trace with hash 29863612, now seen corresponding path program 2 times [2019-11-25 08:58:17,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:17,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721018549] [2019-11-25 08:58:17,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:17,287 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,288 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 2 times [2019-11-25 08:58:17,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:17,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873386136] [2019-11-25 08:58:17,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:58:17,295 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:58:17,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,296 INFO L82 PathProgramCache]: Analyzing trace with hash 608649772, now seen corresponding path program 1 times [2019-11-25 08:58:17,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:58:17,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372336012] [2019-11-25 08:58:17,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:58:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:17,323 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372336012] [2019-11-25 08:58:17,324 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689667491] [2019-11-25 08:58:17,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:58:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:17,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:58:17,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-25 08:58:17,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031459281] [2019-11-25 08:58:17,383 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:17,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:17,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:17,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:17,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:58:17,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:17,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:17,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration3_Loop [2019-11-25 08:58:17,385 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:17,385 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:17,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:17,472 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:17,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:58:17,479 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:17,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:58:17,490 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,529 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:58:17,531 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:58:17,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:58:17,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:58:17,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:58:17,532 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:58:17,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:58:17,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:58:17,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration3_Loop [2019-11-25 08:58:17,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:58:17,532 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:58:17,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:58:17,654 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:58:17,655 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:17,660 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 [2019-11-25 08:58:17,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:58:17,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:58:17,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:58:17,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:58:17,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:58:17,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:58:17,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:58:17,669 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:58:17,669 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a377e37-91d7-47de-aae5-e2c12467106a/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:58:17,673 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:58:17,674 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:58:17,674 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:58:17,674 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-25 08:58:17,677 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:58:17,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,708 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:17,722 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:17,722 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-25 08:58:17,728 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-11-25 08:58:17,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:17,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2019-11-25 08:58:17,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-25 08:58:17,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,730 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:58:17,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,759 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:17,779 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:17,779 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-25 08:58:17,788 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-11-25 08:58:17,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:17,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2019-11-25 08:58:17,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-25 08:58:17,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,790 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:58:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:58:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:58:17,823 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:58:17,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:58:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:58:17,835 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:58:17,835 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-25 08:58:17,860 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 4 states. [2019-11-25 08:58:17,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:58:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:58:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-25 08:58:17,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-25 08:58:17,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-25 08:58:17,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-25 08:58:17,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:58:17,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-11-25 08:58:17,864 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:17,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-11-25 08:58:17,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:58:17,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:58:17,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:58:17,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:58:17,865 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:17,865 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:17,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:58:17,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:58:17,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:58:17,865 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-11-25 08:58:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:58:17,866 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-25 08:58:17,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:58:17,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-25 08:58:17,866 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:17,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:58:17,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:58:17,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:58:17,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:58:17,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:58:17,867 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:17,867 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:17,867 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:58:17,867 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:58:17,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:58:17,867 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:58:17,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:58:17,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:58:17 BoogieIcfgContainer [2019-11-25 08:58:17,876 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:58:17,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:58:17,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:58:17,878 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:58:17,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:58:15" (3/4) ... [2019-11-25 08:58:17,882 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:58:17,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:58:17,884 INFO L168 Benchmark]: Toolchain (without parser) took 2834.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:17,885 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:58:17,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:17,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.41 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. [2019-11-25 08:58:17,886 INFO L168 Benchmark]: Boogie Preprocessor took 19.21 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. [2019-11-25 08:58:17,890 INFO L168 Benchmark]: RCFGBuilder took 170.82 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. [2019-11-25 08:58:17,891 INFO L168 Benchmark]: BuchiAutomizer took 2322.30 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:58:17,892 INFO L168 Benchmark]: Witness Printer took 4.48 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. [2019-11-25 08:58:17,898 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.41 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 19.21 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 170.82 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 2322.30 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: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 101 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...