./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i -s /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/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 18b42b65120149c30866fbc5b5479df029781f63 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:08:18,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:08:18,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:08:18,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:08:18,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:08:18,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:08:18,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:08:18,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:08:18,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:08:18,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:08:18,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:08:18,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:08:18,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:08:18,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:08:18,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:08:18,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:08:18,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:08:18,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:08:18,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:08:18,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:08:18,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:08:18,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:08:18,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:08:18,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:08:18,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:08:18,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:08:18,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:08:18,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:08:18,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:08:18,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:08:18,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:08:18,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:08:18,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:08:18,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:08:18,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:08:18,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:08:18,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:08:18,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:08:18,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:08:18,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:08:18,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:08:18,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 16:08:18,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:08:18,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:08:18,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:08:18,259 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:08:18,259 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:08:18,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:08:18,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:08:18,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:08:18,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:08:18,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:08:18,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:08:18,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:08:18,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:08:18,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:08:18,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:08:18,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:08:18,262 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:08:18,262 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:08:18,262 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_57e6594c-6bfe-465c-857b-5b7b6411b89a/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 -> 18b42b65120149c30866fbc5b5479df029781f63 [2019-12-07 16:08:18,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:08:18,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:08:18,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:08:18,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:08:18,372 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:08:18,372 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i [2019-12-07 16:08:18,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/data/6458c457e/93fe08ac03024eca8f05828f73c63a4b/FLAG148d15531 [2019-12-07 16:08:18,821 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:08:18,822 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i [2019-12-07 16:08:18,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/data/6458c457e/93fe08ac03024eca8f05828f73c63a4b/FLAG148d15531 [2019-12-07 16:08:18,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/data/6458c457e/93fe08ac03024eca8f05828f73c63a4b [2019-12-07 16:08:18,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:08:18,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:08:18,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:18,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:08:18,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:08:18,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:18" (1/1) ... [2019-12-07 16:08:18,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3120301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:18, skipping insertion in model container [2019-12-07 16:08:18,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:08:18" (1/1) ... [2019-12-07 16:08:18,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:08:18,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:08:18,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:19,003 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:08:19,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:08:19,023 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:08:19,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19 WrapperNode [2019-12-07 16:08:19,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:08:19,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:19,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:08:19,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:08:19,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:08:19,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:08:19,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:08:19,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:08:19,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... [2019-12-07 16:08:19,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:08:19,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:08:19,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:08:19,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:08:19,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:08:19,107 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-12-07 16:08:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-12-07 16:08:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 16:08:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:08:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:08:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:08:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:08:19,245 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:08:19,245 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:08:19,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:19 BoogieIcfgContainer [2019-12-07 16:08:19,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:08:19,246 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:08:19,246 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:08:19,248 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:08:19,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:08:19,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:08:18" (1/3) ... [2019-12-07 16:08:19,249 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a0196d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:08:19, skipping insertion in model container [2019-12-07 16:08:19,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:08:19,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:08:19" (2/3) ... [2019-12-07 16:08:19,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25a0196d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:08:19, skipping insertion in model container [2019-12-07 16:08:19,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:08:19,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:19" (3/3) ... [2019-12-07 16:08:19,251 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex11B.i [2019-12-07 16:08:19,279 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:08:19,279 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:08:19,279 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:08:19,279 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:08:19,279 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:08:19,279 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:08:19,279 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:08:19,279 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:08:19,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-12-07 16:08:19,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 16:08:19,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:19,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:19,309 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:08:19,310 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:19,310 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:08:19,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-12-07 16:08:19,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 16:08:19,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:19,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:19,312 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:08:19,312 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:19,318 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 19#L28-3true [2019-12-07 16:08:19,319 INFO L796 eck$LassoCheckResult]: Loop: 19#L28-3true call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 4#L28-1true assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 12#L33true call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 3#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 7#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 15#recFINALtrue assume true; 13#recEXITtrue >#39#return; 10#L33-1true assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 5#L33-3true call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~mem13;havoc main_#t~ite12; 19#L28-3true [2019-12-07 16:08:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:19,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2019-12-07 16:08:19,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:19,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722245161] [2019-12-07 16:08:19,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:19,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:19,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1673639481, now seen corresponding path program 1 times [2019-12-07 16:08:19,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:19,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188936796] [2019-12-07 16:08:19,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:19,470 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:19,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:19,471 INFO L82 PathProgramCache]: Analyzing trace with hash -508919995, now seen corresponding path program 1 times [2019-12-07 16:08:19,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:19,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514899111] [2019-12-07 16:08:19,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:19,516 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:19,830 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-12-07 16:08:19,958 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:08:19,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:08:19,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:08:19,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:08:19,958 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:08:19,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:19,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:08:19,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:08:19,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11B.i_Iteration1_Lasso [2019-12-07 16:08:19,959 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:08:19,959 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:08:19,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:19,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:19,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:19,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:19,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:19,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:20,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:20,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:20,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:20,407 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:08:20,411 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:20,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:20,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:20,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:20,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:20,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:20,429 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:20,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:20,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:20,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:20,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:20,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:20,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:20,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:20,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:20,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:20,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:20,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:20,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:20,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:20,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:20,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:20,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:20,481 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:08:20,489 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 16:08:20,489 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:20,493 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:08:20,495 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:08:20,496 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:08:20,496 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1 Supporting invariants [] [2019-12-07 16:08:20,511 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 16:08:20,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 16:08:20,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:20,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:08:20,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:20,573 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 16:08:20,574 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:20,618 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:20,618 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-12-07 16:08:20,618 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:08:20,625 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:20,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 16:08:20,632 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-12-07 16:08:20,633 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 16:08:20,637 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:20,638 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:08:20,638 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:7 [2019-12-07 16:08:20,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:20,677 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2019-12-07 16:08:20,678 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 6 states. [2019-12-07 16:08:20,775 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 6 states. Result 65 states and 78 transitions. Complement of second has 18 states. [2019-12-07 16:08:20,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-12-07 16:08:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 16:08:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2019-12-07 16:08:20,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 2 letters. Loop has 9 letters. [2019-12-07 16:08:20,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:20,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 11 letters. Loop has 9 letters. [2019-12-07 16:08:20,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:20,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 2 letters. Loop has 18 letters. [2019-12-07 16:08:20,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:20,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 78 transitions. [2019-12-07 16:08:20,785 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-12-07 16:08:20,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 47 states and 58 transitions. [2019-12-07 16:08:20,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-12-07 16:08:20,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-12-07 16:08:20,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 58 transitions. [2019-12-07 16:08:20,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:08:20,791 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 58 transitions. [2019-12-07 16:08:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 58 transitions. [2019-12-07 16:08:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-12-07 16:08:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-12-07 16:08:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2019-12-07 16:08:20,813 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2019-12-07 16:08:20,813 INFO L591 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2019-12-07 16:08:20,813 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:08:20,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 57 transitions. [2019-12-07 16:08:20,815 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-12-07 16:08:20,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:20,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:20,815 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:20,815 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:08:20,815 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 192#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 193#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 208#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 188#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 200#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 187#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 175#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 173#recENTRY [2019-12-07 16:08:20,815 INFO L796 eck$LassoCheckResult]: Loop: 173#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 176#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 174#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 173#recENTRY [2019-12-07 16:08:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:20,816 INFO L82 PathProgramCache]: Analyzing trace with hash -15731550, now seen corresponding path program 1 times [2019-12-07 16:08:20,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:20,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752040070] [2019-12-07 16:08:20,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:20,854 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:20,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:20,855 INFO L82 PathProgramCache]: Analyzing trace with hash 29951, now seen corresponding path program 1 times [2019-12-07 16:08:20,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:20,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749259126] [2019-12-07 16:08:20,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:20,869 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:20,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:20,869 INFO L82 PathProgramCache]: Analyzing trace with hash -507170626, now seen corresponding path program 2 times [2019-12-07 16:08:20,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:20,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466903714] [2019-12-07 16:08:20,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:20,911 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:21,461 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2019-12-07 16:08:21,893 WARN L192 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2019-12-07 16:08:21,978 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:08:21,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:08:21,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:08:21,979 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:08:21,979 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:08:21,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:21,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:08:21,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:08:21,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11B.i_Iteration2_Lasso [2019-12-07 16:08:21,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:08:21,979 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:08:21,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:21,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:21,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:21,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:21,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:21,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:21,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:22,414 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2019-12-07 16:08:22,439 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:08:22,439 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:22,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:22,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:22,445 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:22,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:22,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:22,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:22,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:22,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:22,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:22,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:22,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:22,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:22,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:22,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:22,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:22,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:22,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:22,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:22,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:22,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:22,501 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:22,503 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:22,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:22,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:22,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:22,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:22,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:22,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:22,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:22,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:22,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:22,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:22,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:22,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:22,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:08:22,566 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 16:08:22,567 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:22,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:08:22,572 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:08:22,572 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:08:22,572 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_1) = 2*v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_1 + 1 Supporting invariants [] [2019-12-07 16:08:22,578 INFO L297 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2019-12-07 16:08:22,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 16:08:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:22,605 INFO L264 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:08:22,606 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:22,615 INFO L264 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 16:08:22,616 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:22,648 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:22,649 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-12-07 16:08:22,649 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:08:22,668 INFO L614 ElimStorePlain]: treesize reduction 20, result has 67.7 percent of original size [2019-12-07 16:08:22,669 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:08:22,669 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2019-12-07 16:08:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:22,678 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 16:08:22,678 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 16 Second operand 4 states. [2019-12-07 16:08:22,736 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 128 states and 165 transitions. Complement of second has 17 states. [2019-12-07 16:08:22,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 16:08:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 16:08:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-12-07 16:08:22,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 3 letters. [2019-12-07 16:08:22,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:22,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 3 letters. [2019-12-07 16:08:22,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:22,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 6 letters. [2019-12-07 16:08:22,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:22,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 165 transitions. [2019-12-07 16:08:22,743 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2019-12-07 16:08:22,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 110 states and 147 transitions. [2019-12-07 16:08:22,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2019-12-07 16:08:22,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2019-12-07 16:08:22,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 147 transitions. [2019-12-07 16:08:22,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:08:22,748 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 147 transitions. [2019-12-07 16:08:22,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 147 transitions. [2019-12-07 16:08:22,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2019-12-07 16:08:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 16:08:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2019-12-07 16:08:22,758 INFO L711 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2019-12-07 16:08:22,758 INFO L591 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2019-12-07 16:08:22,758 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:08:22,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 135 transitions. [2019-12-07 16:08:22,760 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2019-12-07 16:08:22,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:22,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:22,761 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:22,761 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:22,761 INFO L794 eck$LassoCheckResult]: Stem: 452#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 442#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 443#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 470#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 494#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 504#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 516#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 515#recFINAL assume true; 493#recEXIT >#39#return; 453#L33-1 assume !(main_#t~ret11 <= -1);main_#t~ite12 := 1; 438#L33-3 [2019-12-07 16:08:22,761 INFO L796 eck$LassoCheckResult]: Loop: 438#L33-3 call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~mem13;havoc main_#t~ite12; 439#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 485#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 476#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 497#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 489#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 490#recFINAL assume true; 475#recEXIT >#39#return; 472#L33-1 assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 438#L33-3 [2019-12-07 16:08:22,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:22,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2061793209, now seen corresponding path program 1 times [2019-12-07 16:08:22,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:22,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255128390] [2019-12-07 16:08:22,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:22,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255128390] [2019-12-07 16:08:22,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:22,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 16:08:22,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965647414] [2019-12-07 16:08:22,825 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:08:22,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:22,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1530037457, now seen corresponding path program 2 times [2019-12-07 16:08:22,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:22,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537212803] [2019-12-07 16:08:22,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:22,844 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:23,098 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2019-12-07 16:08:23,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:08:23,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:08:23,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:08:23,151 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. cyclomatic complexity: 41 Second operand 6 states. [2019-12-07 16:08:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:23,191 INFO L93 Difference]: Finished difference Result 98 states and 123 transitions. [2019-12-07 16:08:23,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:08:23,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 123 transitions. [2019-12-07 16:08:23,193 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2019-12-07 16:08:23,195 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 92 states and 117 transitions. [2019-12-07 16:08:23,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2019-12-07 16:08:23,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2019-12-07 16:08:23,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 117 transitions. [2019-12-07 16:08:23,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:08:23,195 INFO L688 BuchiCegarLoop]: Abstraction has 92 states and 117 transitions. [2019-12-07 16:08:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 117 transitions. [2019-12-07 16:08:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2019-12-07 16:08:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-12-07 16:08:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2019-12-07 16:08:23,201 INFO L711 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2019-12-07 16:08:23,201 INFO L591 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2019-12-07 16:08:23,201 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:08:23,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 115 transitions. [2019-12-07 16:08:23,202 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-12-07 16:08:23,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:23,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:23,203 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:23,203 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:23,203 INFO L794 eck$LassoCheckResult]: Stem: 669#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 659#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 660#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 683#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 703#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 707#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 705#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 665#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 700#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 701#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 717#recFINAL assume true; 709#recEXIT >#37#return; 706#L19-1 #res := #t~ret5;havoc #t~ret5; 704#recFINAL assume true; 702#recEXIT >#39#return; 667#L33-1 assume !(main_#t~ret11 <= -1);main_#t~ite12 := 1; 655#L33-3 [2019-12-07 16:08:23,203 INFO L796 eck$LassoCheckResult]: Loop: 655#L33-3 call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~mem13;havoc main_#t~ite12; 656#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 695#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 692#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 694#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 698#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 697#recFINAL assume true; 696#recEXIT >#39#return; 685#L33-1 assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 655#L33-3 [2019-12-07 16:08:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:23,204 INFO L82 PathProgramCache]: Analyzing trace with hash 970657719, now seen corresponding path program 1 times [2019-12-07 16:08:23,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:23,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91426372] [2019-12-07 16:08:23,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 16:08:23,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91426372] [2019-12-07 16:08:23,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:08:23,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 16:08:23,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830570072] [2019-12-07 16:08:23,260 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:08:23,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:23,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1530037457, now seen corresponding path program 3 times [2019-12-07 16:08:23,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:23,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783900391] [2019-12-07 16:08:23,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,277 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:23,499 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-12-07 16:08:23,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:08:23,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:08:23,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:08:23,540 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. cyclomatic complexity: 33 Second operand 7 states. [2019-12-07 16:08:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:08:23,573 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2019-12-07 16:08:23,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:08:23,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 96 transitions. [2019-12-07 16:08:23,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:08:23,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 52 states and 63 transitions. [2019-12-07 16:08:23,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 16:08:23,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 16:08:23,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2019-12-07 16:08:23,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:08:23,576 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-12-07 16:08:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2019-12-07 16:08:23,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2019-12-07 16:08:23,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 16:08:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-12-07 16:08:23,579 INFO L711 BuchiCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-12-07 16:08:23,579 INFO L591 BuchiCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-12-07 16:08:23,579 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 16:08:23,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 60 transitions. [2019-12-07 16:08:23,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 16:08:23,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:08:23,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:08:23,580 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:08:23,580 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 16:08:23,580 INFO L794 eck$LassoCheckResult]: Stem: 855#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 849#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 850#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 844#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 845#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 869#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 876#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 858#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 878#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 882#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 880#recFINAL assume true; 861#recEXIT >#37#return; 862#L19-1 #res := #t~ret5;havoc #t~ret5; 874#recFINAL assume true; 870#recEXIT >#39#return; 854#L33-1 assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 846#L33-3 call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~mem13;havoc main_#t~ite12; 847#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 843#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 836#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 835#recENTRY [2019-12-07 16:08:23,581 INFO L796 eck$LassoCheckResult]: Loop: 835#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 837#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 838#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 835#recENTRY [2019-12-07 16:08:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:23,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1312873862, now seen corresponding path program 1 times [2019-12-07 16:08:23,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:23,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466434229] [2019-12-07 16:08:23,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,619 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:23,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:23,620 INFO L82 PathProgramCache]: Analyzing trace with hash 29951, now seen corresponding path program 2 times [2019-12-07 16:08:23,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:23,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837684053] [2019-12-07 16:08:23,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,630 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:23,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1853025306, now seen corresponding path program 2 times [2019-12-07 16:08:23,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:08:23,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201205234] [2019-12-07 16:08:23,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:08:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:08:23,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:08:24,045 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2019-12-07 16:08:25,554 WARN L192 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 216 DAG size of output: 184 [2019-12-07 16:08:25,753 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-12-07 16:08:26,025 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-12-07 16:08:26,196 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-12-07 16:08:26,198 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:08:26,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:08:26,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:08:26,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:08:26,199 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:08:26,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:08:26,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:08:26,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11B.i_Iteration5_Lasso [2019-12-07 16:08:26,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:08:26,199 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:08:26,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:08:26,822 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-12-07 16:08:26,861 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:08:26,861 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/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 [2019-12-07 16:08:26,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:26,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:26,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,901 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:26,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:26,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:08:26,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:08:26,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:08:26,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:26,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:26,957 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:26,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:26,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:26,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:26,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:26,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:26,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:26,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:26,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:26,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:26,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:26,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:26,989 INFO L203 nArgumentSynthesizer]: 16 stem disjuncts [2019-12-07 16:08:26,989 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 16:08:26,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:27,007 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2019-12-07 16:08:27,007 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:08:27,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:27,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:27,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:27,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:27,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:27,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:27,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:27,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:27,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:27,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:08:27,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:08:27,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:08:27,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:08:27,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:08:27,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:08:27,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:08:27,073 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:08:27,081 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 16:08:27,081 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_57e6594c-6bfe-465c-857b-5b7b6411b89a/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:08:27,083 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:08:27,085 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:08:27,085 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:08:27,085 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_2) = 2*v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_2 + 1 Supporting invariants [] [2019-12-07 16:08:27,089 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 16:08:27,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 16:08:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:27,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:08:27,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:27,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:08:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:27,150 INFO L264 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 16:08:27,151 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:27,174 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:27,174 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-12-07 16:08:27,175 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:08:27,193 INFO L614 ElimStorePlain]: treesize reduction 20, result has 67.7 percent of original size [2019-12-07 16:08:27,193 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:08:27,194 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2019-12-07 16:08:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:27,204 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-12-07 16:08:27,204 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-12-07 16:08:27,256 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 78 states and 96 transitions. Complement of second has 16 states. [2019-12-07 16:08:27,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 16:08:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 16:08:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-12-07 16:08:27,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 20 letters. Loop has 3 letters. [2019-12-07 16:08:27,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:27,257 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:08:27,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:27,291 INFO L264 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:08:27,292 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:27,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:08:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:27,313 INFO L264 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 16:08:27,313 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:27,334 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:27,334 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-12-07 16:08:27,335 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:08:27,351 INFO L614 ElimStorePlain]: treesize reduction 20, result has 67.7 percent of original size [2019-12-07 16:08:27,351 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:08:27,352 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2019-12-07 16:08:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:27,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2019-12-07 16:08:27,361 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-12-07 16:08:27,405 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 78 states and 96 transitions. Complement of second has 16 states. [2019-12-07 16:08:27,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 16:08:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 16:08:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-12-07 16:08:27,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 20 letters. Loop has 3 letters. [2019-12-07 16:08:27,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:27,406 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:08:27,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:08:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:27,436 INFO L264 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:08:27,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:27,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:08:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:08:27,457 INFO L264 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2019-12-07 16:08:27,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:08:27,478 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:08:27,478 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 53 [2019-12-07 16:08:27,478 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:08:27,494 INFO L614 ElimStorePlain]: treesize reduction 20, result has 67.7 percent of original size [2019-12-07 16:08:27,495 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:08:27,495 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2019-12-07 16:08:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:08:27,503 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-12-07 16:08:27,504 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-12-07 16:08:27,566 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 76 states and 88 transitions. Complement of second has 17 states. [2019-12-07 16:08:27,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 16:08:27,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 16:08:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-12-07 16:08:27,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 20 letters. Loop has 3 letters. [2019-12-07 16:08:27,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:27,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 23 letters. Loop has 3 letters. [2019-12-07 16:08:27,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:27,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 20 letters. Loop has 6 letters. [2019-12-07 16:08:27,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:08:27,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 88 transitions. [2019-12-07 16:08:27,568 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:08:27,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 0 states and 0 transitions. [2019-12-07 16:08:27,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:08:27,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:08:27,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:08:27,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:08:27,569 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:08:27,569 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:08:27,569 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:08:27,569 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 16:08:27,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:08:27,569 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:08:27,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 16:08:27,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:08:27 BoogieIcfgContainer [2019-12-07 16:08:27,573 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:08:27,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:08:27,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:08:27,573 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:08:27,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:08:19" (3/4) ... [2019-12-07 16:08:27,576 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:08:27,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:08:27,577 INFO L168 Benchmark]: Toolchain (without parser) took 8739.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 946.2 MB in the beginning and 835.6 MB in the end (delta: 110.7 MB). Peak memory consumption was 315.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:27,577 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:27,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:27,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:27,578 INFO L168 Benchmark]: Boogie Preprocessor took 14.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:27,578 INFO L168 Benchmark]: RCFGBuilder took 185.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:27,578 INFO L168 Benchmark]: BuchiAutomizer took 8326.99 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 94.9 MB). Free memory was 1.1 GB in the beginning and 835.6 MB in the end (delta: 247.1 MB). Peak memory consumption was 342.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:08:27,578 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 835.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:08:27,580 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.85 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 185.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8326.99 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 94.9 MB). Free memory was 1.1 GB in the beginning and 835.6 MB in the end (delta: 247.1 MB). Peak memory consumption was 342.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 835.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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 unknown-#memory_int-unknown[qq][qq] and consists of 9 locations. One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[op][op] + 1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * unknown-#memory_int-unknown[op][op] + 1 and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 7.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 104 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 80 SDtfs, 61 SDslu, 119 SDs, 0 SdLazy, 197 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital364 mio100 ax100 hnf100 lsp97 ukn45 mio100 lsp29 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf444 smp79 tf100 neg87 sie149 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 62ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 16 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 76 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...