./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/avg05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/avg05-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 32bit --witnessprinter.graph.data.programhash 3cd0186843eb184a03f25fecfe7ca0b9c84c33a9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:46:42,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:46:42,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:46:42,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:46:42,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:46:42,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:46:42,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:46:42,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:46:42,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:46:42,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:46:42,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:46:42,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:46:42,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:46:42,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:46:42,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:46:42,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:46:42,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:46:42,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:46:42,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:46:42,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:46:42,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:46:42,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:46:42,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:46:42,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:46:42,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:46:42,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:46:42,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:46:42,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:46:42,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:46:42,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:46:42,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:46:42,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:46:42,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:46:42,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:46:42,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:46:42,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:46:42,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:46:42,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:46:42,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:46:42,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:46:42,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:46:42,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:46:42,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:46:42,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:46:42,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:46:42,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:46:42,552 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:46:42,552 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:46:42,553 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:46:42,553 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:46:42,553 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:46:42,553 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:46:42,553 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:46:42,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:46:42,554 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:46:42,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:46:42,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:46:42,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:46:42,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:46:42,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:46:42,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:46:42,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:46:42,555 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:46:42,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:46:42,556 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:46:42,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:46:42,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:46:42,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:46:42,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:46:42,556 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:46:42,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:46:42,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:46:42,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:46:42,557 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:46:42,558 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:46:42,558 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_f673e645-750a-481c-8fe9-a78b4b163242/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cd0186843eb184a03f25fecfe7ca0b9c84c33a9 [2019-12-07 18:46:42,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:46:42,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:46:42,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:46:42,670 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:46:42,670 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:46:42,671 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/../../sv-benchmarks/c/reducercommutativity/avg05-1.i [2019-12-07 18:46:42,718 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/data/ee3ce9e79/fb6733ace22f4f00ba5e25e99747da38/FLAG4ce68cfe3 [2019-12-07 18:46:43,091 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:46:43,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/sv-benchmarks/c/reducercommutativity/avg05-1.i [2019-12-07 18:46:43,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/data/ee3ce9e79/fb6733ace22f4f00ba5e25e99747da38/FLAG4ce68cfe3 [2019-12-07 18:46:43,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/data/ee3ce9e79/fb6733ace22f4f00ba5e25e99747da38 [2019-12-07 18:46:43,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:46:43,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:46:43,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:46:43,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:46:43,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:46:43,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e583495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43, skipping insertion in model container [2019-12-07 18:46:43,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:46:43,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:46:43,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:46:43,632 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:46:43,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:46:43,693 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:46:43,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43 WrapperNode [2019-12-07 18:46:43,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:46:43,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:46:43,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:46:43,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:46:43,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:46:43,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:46:43,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:46:43,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:46:43,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... [2019-12-07 18:46:43,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:46:43,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:46:43,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:46:43,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:46:43,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:46:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:46:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:46:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:46:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:46:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:46:43,943 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:46:43,943 INFO L287 CfgBuilder]: Removed 15 assume(true) statements. [2019-12-07 18:46:43,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:46:43 BoogieIcfgContainer [2019-12-07 18:46:43,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:46:43,944 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:46:43,945 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:46:43,947 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:46:43,948 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:46:43,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:46:43" (1/3) ... [2019-12-07 18:46:43,949 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7485b6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:46:43, skipping insertion in model container [2019-12-07 18:46:43,949 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:46:43,949 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:46:43" (2/3) ... [2019-12-07 18:46:43,949 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7485b6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:46:43, skipping insertion in model container [2019-12-07 18:46:43,949 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:46:43,949 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:46:43" (3/3) ... [2019-12-07 18:46:43,951 INFO L371 chiAutomizerObserver]: Analyzing ICFG avg05-1.i [2019-12-07 18:46:43,983 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:46:43,983 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:46:43,983 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:46:43,983 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:46:43,983 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:46:43,984 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:46:43,984 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:46:43,984 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:46:43,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2019-12-07 18:46:44,008 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2019-12-07 18:46:44,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:44,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:44,013 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:46:44,013 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:44,013 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:46:44,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2019-12-07 18:46:44,014 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2019-12-07 18:46:44,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:44,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:44,015 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:46:44,015 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:44,020 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 26#L23-3true [2019-12-07 18:46:44,020 INFO L796 eck$LassoCheckResult]: Loop: 26#L23-3true assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 9#L23-2true main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 26#L23-3true [2019-12-07 18:46:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,024 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 18:46:44,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882160188] [2019-12-07 18:46:44,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,105 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:44,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-12-07 18:46:44,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637178726] [2019-12-07 18:46:44,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,117 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:44,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,118 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-12-07 18:46:44,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622735260] [2019-12-07 18:46:44,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:44,242 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:46:44,242 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:46:44,242 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:46:44,243 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:46:44,243 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:46:44,243 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:46:44,243 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:46:44,243 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:46:44,243 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration1_Lasso [2019-12-07 18:46:44,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:46:44,243 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:46:44,259 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 18:46:44,263 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 18:46:44,265 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 18:46:44,266 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 18:46:44,267 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 18:46:44,270 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 18:46:44,271 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 18:46:44,273 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 18:46:44,274 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 18:46:44,276 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 18:46:44,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:46:44,280 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 18:46:44,282 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 18:46:44,284 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 18:46:44,286 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 18:46:44,319 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 18:46:44,321 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 18:46:44,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:46:44,426 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:46:44,430 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,433 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 18:46:44,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,444 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 18:46:44,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,451 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 18:46:44,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,458 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 18:46:44,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,466 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 18:46:44,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:44,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:44,473 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,477 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 18:46:44,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,483 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 18:46:44,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,490 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 18:46:44,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,497 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 18:46:44,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,504 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 18:46:44,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:44,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:44,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,518 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 18:46:44,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,525 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 18:46:44,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,533 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 18:46:44,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,541 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 18:46:44,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,548 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 18:46:44,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:44,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:44,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,558 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 18:46:44,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:44,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:44,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,569 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 18:46:44,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,577 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 18:46:44,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:44,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:44,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:44,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,585 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 18:46:44,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:44,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:44,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,596 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 18:46:44,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:44,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:44,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:44,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:44,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:44,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:44,609 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:46:44,625 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-12-07 18:46:44,625 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:44,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:46:44,632 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:46:44,633 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:46:44,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1) = -2*ULTIMATE.start_main_~i~1 + 9 Supporting invariants [] [2019-12-07 18:46:44,640 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 18:46:44,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:44,675 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:46:44,676 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:44,688 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:46:44,689 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:44,699 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 18:46:44,710 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:46:44,711 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2019-12-07 18:46:44,747 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 69 states and 95 transitions. Complement of second has 7 states. [2019-12-07 18:46:44,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:46:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:46:44,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2019-12-07 18:46:44,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 18:46:44,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:46:44,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 18:46:44,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:46:44,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 18:46:44,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:46:44,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 95 transitions. [2019-12-07 18:46:44,755 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:44,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 19 states and 24 transitions. [2019-12-07 18:46:44,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 18:46:44,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:46:44,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2019-12-07 18:46:44,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:44,760 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-12-07 18:46:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2019-12-07 18:46:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 18:46:44,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:46:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-12-07 18:46:44,779 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-12-07 18:46:44,779 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-12-07 18:46:44,779 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:46:44,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2019-12-07 18:46:44,780 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:44,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:44,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:44,780 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 18:46:44,780 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:44,781 INFO L794 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 150#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 147#L23-3 assume !(main_~i~1 < 5); 146#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 139#L9-3 [2019-12-07 18:46:44,781 INFO L796 eck$LassoCheckResult]: Loop: 139#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 140#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 139#L9-3 [2019-12-07 18:46:44,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,781 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2019-12-07 18:46:44,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009112172] [2019-12-07 18:46:44,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:44,809 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 18:46:44,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009112172] [2019-12-07 18:46:44,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:44,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:46:44,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675464446] [2019-12-07 18:46:44,812 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:44,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 1 times [2019-12-07 18:46:44,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579791138] [2019-12-07 18:46:44,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:44,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:44,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:46:44,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:46:44,846 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:46:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:44,855 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-12-07 18:46:44,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:46:44,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2019-12-07 18:46:44,857 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:44,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 24 transitions. [2019-12-07 18:46:44,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 18:46:44,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:46:44,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2019-12-07 18:46:44,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:44,858 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-12-07 18:46:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2019-12-07 18:46:44,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 18:46:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:46:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-12-07 18:46:44,860 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-12-07 18:46:44,860 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-12-07 18:46:44,860 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:46:44,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2019-12-07 18:46:44,861 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:44,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:44,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:44,861 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:46:44,861 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:44,861 INFO L794 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 195#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 192#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 193#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 194#L23-3 assume !(main_~i~1 < 5); 191#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 184#L9-3 [2019-12-07 18:46:44,861 INFO L796 eck$LassoCheckResult]: Loop: 184#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 185#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 184#L9-3 [2019-12-07 18:46:44,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,862 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2019-12-07 18:46:44,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583379907] [2019-12-07 18:46:44,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:44,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583379907] [2019-12-07 18:46:44,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468109768] [2019-12-07 18:46:44,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:44,906 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:46:44,906 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:44,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:44,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-12-07 18:46:44,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114945107] [2019-12-07 18:46:44,916 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:44,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 2 times [2019-12-07 18:46:44,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991228990] [2019-12-07 18:46:44,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:44,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:44,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:44,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:46:44,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:46:44,950 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. cyclomatic complexity: 9 Second operand 5 states. [2019-12-07 18:46:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:44,964 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-12-07 18:46:44,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:46:44,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2019-12-07 18:46:44,966 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:44,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 26 transitions. [2019-12-07 18:46:44,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 18:46:44,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:46:44,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2019-12-07 18:46:44,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:44,967 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-12-07 18:46:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2019-12-07 18:46:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-12-07 18:46:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 18:46:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-12-07 18:46:44,969 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-12-07 18:46:44,970 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-12-07 18:46:44,970 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:46:44,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 25 transitions. [2019-12-07 18:46:44,970 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:44,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:44,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:44,971 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2019-12-07 18:46:44,971 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:44,971 INFO L794 eck$LassoCheckResult]: Stem: 261#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 260#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 256#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 257#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 258#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 259#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 266#L23-3 assume !(main_~i~1 < 5); 255#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 248#L9-3 [2019-12-07 18:46:44,971 INFO L796 eck$LassoCheckResult]: Loop: 248#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 249#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 248#L9-3 [2019-12-07 18:46:44,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2019-12-07 18:46:44,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:44,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306445164] [2019-12-07 18:46:44,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:44,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306445164] [2019-12-07 18:46:44,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27839308] [2019-12-07 18:46:44,999 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:45,024 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:46:45,025 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:46:45,025 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:46:45,026 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:45,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:45,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-12-07 18:46:45,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027849030] [2019-12-07 18:46:45,032 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 3 times [2019-12-07 18:46:45,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699643641] [2019-12-07 18:46:45,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:45,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:45,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:46:45,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:46:45,063 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-12-07 18:46:45,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:45,076 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2019-12-07 18:46:45,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:46:45,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2019-12-07 18:46:45,077 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:45,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 28 transitions. [2019-12-07 18:46:45,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 18:46:45,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:46:45,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2019-12-07 18:46:45,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:45,078 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-12-07 18:46:45,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2019-12-07 18:46:45,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-12-07 18:46:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 18:46:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-12-07 18:46:45,079 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-12-07 18:46:45,079 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-12-07 18:46:45,079 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:46:45,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2019-12-07 18:46:45,080 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:45,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:45,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:45,080 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2019-12-07 18:46:45,080 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:45,080 INFO L794 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 335#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 331#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 332#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 333#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 334#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 343#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 342#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 341#L23-3 assume !(main_~i~1 < 5); 330#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 323#L9-3 [2019-12-07 18:46:45,081 INFO L796 eck$LassoCheckResult]: Loop: 323#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 324#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 323#L9-3 [2019-12-07 18:46:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2019-12-07 18:46:45,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938195975] [2019-12-07 18:46:45,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:45,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938195975] [2019-12-07 18:46:45,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265976973] [2019-12-07 18:46:45,109 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:45,132 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-12-07 18:46:45,132 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:46:45,133 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:46:45,133 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:45,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:45,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 18:46:45,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419990607] [2019-12-07 18:46:45,140 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 4 times [2019-12-07 18:46:45,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405044299] [2019-12-07 18:46:45,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:45,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:45,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:46:45,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:46:45,164 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. cyclomatic complexity: 9 Second operand 7 states. [2019-12-07 18:46:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:45,180 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2019-12-07 18:46:45,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:46:45,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2019-12-07 18:46:45,181 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:45,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 30 transitions. [2019-12-07 18:46:45,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 18:46:45,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:46:45,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 30 transitions. [2019-12-07 18:46:45,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:45,182 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-12-07 18:46:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 30 transitions. [2019-12-07 18:46:45,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-12-07 18:46:45,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:46:45,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-12-07 18:46:45,183 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-12-07 18:46:45,183 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-12-07 18:46:45,183 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 18:46:45,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2019-12-07 18:46:45,184 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:45,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:45,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:45,184 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2019-12-07 18:46:45,184 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:45,184 INFO L794 eck$LassoCheckResult]: Stem: 425#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 421#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 417#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 418#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 419#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 420#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 422#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 431#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 430#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 429#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 428#L23-3 assume !(main_~i~1 < 5); 416#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 409#L9-3 [2019-12-07 18:46:45,185 INFO L796 eck$LassoCheckResult]: Loop: 409#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 410#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 409#L9-3 [2019-12-07 18:46:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,185 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2019-12-07 18:46:45,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,185 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869383136] [2019-12-07 18:46:45,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:45,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869383136] [2019-12-07 18:46:45,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819919791] [2019-12-07 18:46:45,220 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:45,244 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 18:46:45,244 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:46:45,244 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:46:45,245 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:46:45,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:45,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-12-07 18:46:45,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41904741] [2019-12-07 18:46:45,252 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 5 times [2019-12-07 18:46:45,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574975196] [2019-12-07 18:46:45,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:45,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:45,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:46:45,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:46:45,274 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 9 Second operand 8 states. [2019-12-07 18:46:45,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:45,291 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-12-07 18:46:45,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:46:45,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2019-12-07 18:46:45,292 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:45,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 31 transitions. [2019-12-07 18:46:45,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 18:46:45,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:46:45,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2019-12-07 18:46:45,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:45,294 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-12-07 18:46:45,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2019-12-07 18:46:45,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 18:46:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:46:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-12-07 18:46:45,296 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-12-07 18:46:45,296 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-12-07 18:46:45,296 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 18:46:45,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 31 transitions. [2019-12-07 18:46:45,296 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 18:46:45,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:45,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:45,297 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2019-12-07 18:46:45,297 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:45,297 INFO L794 eck$LassoCheckResult]: Stem: 519#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 517#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 513#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 514#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 515#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 516#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 518#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 529#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 528#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 527#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 526#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 525#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 524#L23-3 assume !(main_~i~1 < 5); 512#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 505#L9-3 [2019-12-07 18:46:45,297 INFO L796 eck$LassoCheckResult]: Loop: 505#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 506#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 505#L9-3 [2019-12-07 18:46:45,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2019-12-07 18:46:45,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071894113] [2019-12-07 18:46:45,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,324 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 6 times [2019-12-07 18:46:45,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26496532] [2019-12-07 18:46:45,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:45,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:45,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1715425495, now seen corresponding path program 1 times [2019-12-07 18:46:45,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:45,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832022025] [2019-12-07 18:46:45,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:45,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:45,690 WARN L192 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 101 [2019-12-07 18:46:45,748 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:46:45,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:46:45,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:46:45,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:46:45,748 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:46:45,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:46:45,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:46:45,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:46:45,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration7_Lasso [2019-12-07 18:46:45,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:46:45,748 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:46:45,751 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 18:46:45,752 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 18:46:45,753 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 18:46:45,755 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 18:46:45,756 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 18:46:45,761 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 18:46:45,762 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 18:46:45,763 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 18:46:45,765 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 18:46:45,767 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 18:46:45,768 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 18:46:45,769 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 18:46:45,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:46:45,841 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 18:46:45,843 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 18:46:45,844 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 18:46:45,845 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 18:46:45,846 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 18:46:45,847 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 18:46:45,848 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 18:46:45,849 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 18:46:45,850 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 18:46:45,991 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:46:45,991 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:45,994 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 18:46:45,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:45,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:45,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:45,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:45,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:45,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:45,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:45,997 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,002 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 18:46:46,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,009 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 18:46:46,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:46,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:46,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 18:46:46,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,026 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 18:46:46,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,029 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,033 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 18:46:46,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,040 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 18:46:46,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,047 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 18:46:46,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,054 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 18:46:46,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:46,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:46,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,063 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 18:46:46,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,071 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 18:46:46,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,078 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 18:46:46,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:46:46,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:46:46,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:46:46,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,085 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 18:46:46,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:46,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:46,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,097 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 18:46:46,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:46,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:46,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,107 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 18:46:46,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:46,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:46,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,118 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 18:46:46,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:46:46,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:46:46,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:46:46,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:46:46,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:46:46,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:46:46,133 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:46:46,161 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-12-07 18:46:46,162 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/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 18:46:46,164 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:46:46,166 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:46:46,166 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:46:46,166 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~i~0) = -2*ULTIMATE.start_avg_~i~0 + 9 Supporting invariants [] [2019-12-07 18:46:46,174 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 18:46:46,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,199 INFO L264 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:46:46,200 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,212 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:46:46,212 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:46,218 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 18:46:46,218 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:46:46,218 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 18:46:46,229 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 31 states and 38 transitions. Complement of second has 7 states. [2019-12-07 18:46:46,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:46:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:46:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-12-07 18:46:46,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 18:46:46,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:46:46,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 16 letters. Loop has 2 letters. [2019-12-07 18:46:46,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:46:46,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 4 letters. [2019-12-07 18:46:46,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:46:46,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2019-12-07 18:46:46,233 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 28 states and 33 transitions. [2019-12-07 18:46:46,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:46:46,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 18:46:46,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2019-12-07 18:46:46,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:46,234 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-12-07 18:46:46,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2019-12-07 18:46:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 18:46:46,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 18:46:46,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-12-07 18:46:46,236 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-12-07 18:46:46,236 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-12-07 18:46:46,236 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 18:46:46,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2019-12-07 18:46:46,236 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:46,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:46,237 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:46,237 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:46,237 INFO L794 eck$LassoCheckResult]: Stem: 662#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 660#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 656#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 657#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 658#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 659#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 661#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 672#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 671#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 670#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 669#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 668#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 667#L23-3 assume !(main_~i~1 < 5); 655#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 647#L9-3 assume !(avg_~i~0 < 5); 645#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 646#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 665#L9-8 [2019-12-07 18:46:46,237 INFO L796 eck$LassoCheckResult]: Loop: 665#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 666#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 665#L9-8 [2019-12-07 18:46:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1638581027, now seen corresponding path program 1 times [2019-12-07 18:46:46,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522252819] [2019-12-07 18:46:46,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 18:46:46,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522252819] [2019-12-07 18:46:46,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:46,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:46:46,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830450759] [2019-12-07 18:46:46,264 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2243, now seen corresponding path program 1 times [2019-12-07 18:46:46,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986588816] [2019-12-07 18:46:46,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,269 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:46,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:46:46,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:46:46,287 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:46:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:46,302 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2019-12-07 18:46:46,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:46:46,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 37 transitions. [2019-12-07 18:46:46,303 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 37 transitions. [2019-12-07 18:46:46,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 18:46:46,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 18:46:46,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2019-12-07 18:46:46,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:46,304 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-12-07 18:46:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2019-12-07 18:46:46,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2019-12-07 18:46:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 18:46:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-12-07 18:46:46,306 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-12-07 18:46:46,306 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-12-07 18:46:46,306 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 18:46:46,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 33 transitions. [2019-12-07 18:46:46,306 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:46,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:46,307 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:46,307 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:46,307 INFO L794 eck$LassoCheckResult]: Stem: 728#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 727#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 723#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 724#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 725#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 726#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 740#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 739#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 738#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 737#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 736#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 735#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 734#L23-3 assume !(main_~i~1 < 5); 722#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 714#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 715#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 716#L9-3 assume !(avg_~i~0 < 5); 712#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 713#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 731#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 732#L9-7 [2019-12-07 18:46:46,307 INFO L796 eck$LassoCheckResult]: Loop: 732#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 733#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 732#L9-7 [2019-12-07 18:46:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1577614809, now seen corresponding path program 1 times [2019-12-07 18:46:46,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598152788] [2019-12-07 18:46:46,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 18:46:46,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598152788] [2019-12-07 18:46:46,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498891523] [2019-12-07 18:46:46,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,359 INFO L264 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:46:46,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-12-07 18:46:46,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:46,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-12-07 18:46:46,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402258147] [2019-12-07 18:46:46,367 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:46,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 2 times [2019-12-07 18:46:46,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355337750] [2019-12-07 18:46:46,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,372 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:46:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:46:46,394 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. cyclomatic complexity: 9 Second operand 5 states. [2019-12-07 18:46:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:46,417 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-12-07 18:46:46,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:46:46,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 43 transitions. [2019-12-07 18:46:46,418 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 43 transitions. [2019-12-07 18:46:46,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-12-07 18:46:46,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-12-07 18:46:46,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 43 transitions. [2019-12-07 18:46:46,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:46,419 INFO L688 BuchiCegarLoop]: Abstraction has 39 states and 43 transitions. [2019-12-07 18:46:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 43 transitions. [2019-12-07 18:46:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2019-12-07 18:46:46,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 18:46:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2019-12-07 18:46:46,422 INFO L711 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-12-07 18:46:46,422 INFO L591 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-12-07 18:46:46,422 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 18:46:46,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 37 transitions. [2019-12-07 18:46:46,422 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:46,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:46,423 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:46,423 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:46,423 INFO L794 eck$LassoCheckResult]: Stem: 866#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 862#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 858#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 859#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 860#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 861#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 863#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 876#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 875#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 874#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 873#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 872#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 871#L23-3 assume !(main_~i~1 < 5); 857#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 847#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 848#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 849#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 850#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 854#L9-3 assume !(avg_~i~0 < 5); 845#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 846#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 869#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 870#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 867#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 868#L9-7 [2019-12-07 18:46:46,423 INFO L796 eck$LassoCheckResult]: Loop: 868#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 877#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 868#L9-7 [2019-12-07 18:46:46,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,424 INFO L82 PathProgramCache]: Analyzing trace with hash -483964569, now seen corresponding path program 1 times [2019-12-07 18:46:46,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214626504] [2019-12-07 18:46:46,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,458 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-12-07 18:46:46,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214626504] [2019-12-07 18:46:46,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484621331] [2019-12-07 18:46:46,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,492 INFO L264 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:46:46,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-12-07 18:46:46,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:46,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-12-07 18:46:46,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103799436] [2019-12-07 18:46:46,501 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 3 times [2019-12-07 18:46:46,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267906485] [2019-12-07 18:46:46,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,506 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:46,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:46:46,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:46:46,526 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-12-07 18:46:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:46,564 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2019-12-07 18:46:46,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:46:46,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 49 transitions. [2019-12-07 18:46:46,565 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 49 transitions. [2019-12-07 18:46:46,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2019-12-07 18:46:46,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-12-07 18:46:46,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 49 transitions. [2019-12-07 18:46:46,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:46,566 INFO L688 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-12-07 18:46:46,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 49 transitions. [2019-12-07 18:46:46,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2019-12-07 18:46:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 18:46:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-12-07 18:46:46,568 INFO L711 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-12-07 18:46:46,568 INFO L591 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-12-07 18:46:46,568 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 18:46:46,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2019-12-07 18:46:46,568 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:46,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:46,569 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:46,569 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:46,569 INFO L794 eck$LassoCheckResult]: Stem: 1021#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1018#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1014#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1015#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1016#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1017#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1036#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1035#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1033#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1032#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1031#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1030#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1029#L23-3 assume !(main_~i~1 < 5); 1013#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1003#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1004#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1005#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1006#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1010#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1028#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1027#L9-3 assume !(avg_~i~0 < 5); 1001#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1002#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1024#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1025#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1026#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1037#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1022#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1023#L9-7 [2019-12-07 18:46:46,569 INFO L796 eck$LassoCheckResult]: Loop: 1023#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1034#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1023#L9-7 [2019-12-07 18:46:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1757450151, now seen corresponding path program 2 times [2019-12-07 18:46:46,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829630810] [2019-12-07 18:46:46,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-12-07 18:46:46,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829630810] [2019-12-07 18:46:46,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563497986] [2019-12-07 18:46:46,603 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:46,641 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:46:46,641 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:46:46,642 INFO L264 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:46:46,643 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-12-07 18:46:46,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:46,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 18:46:46,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349828522] [2019-12-07 18:46:46,651 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,652 INFO L82 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 4 times [2019-12-07 18:46:46,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188549481] [2019-12-07 18:46:46,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,657 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:46,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:46:46,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:46:46,677 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. cyclomatic complexity: 9 Second operand 7 states. [2019-12-07 18:46:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:46,715 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2019-12-07 18:46:46,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:46:46,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 55 transitions. [2019-12-07 18:46:46,716 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 55 transitions. [2019-12-07 18:46:46,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-12-07 18:46:46,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2019-12-07 18:46:46,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 55 transitions. [2019-12-07 18:46:46,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:46,717 INFO L688 BuchiCegarLoop]: Abstraction has 51 states and 55 transitions. [2019-12-07 18:46:46,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 55 transitions. [2019-12-07 18:46:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2019-12-07 18:46:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 18:46:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-12-07 18:46:46,720 INFO L711 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-12-07 18:46:46,720 INFO L591 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-12-07 18:46:46,720 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-12-07 18:46:46,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 45 transitions. [2019-12-07 18:46:46,720 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:46,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:46,721 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:46,721 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:46,721 INFO L794 eck$LassoCheckResult]: Stem: 1199#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1196#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1192#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1193#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1194#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1195#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1213#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1212#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1209#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1208#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1207#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1206#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1205#L23-3 assume !(main_~i~1 < 5); 1191#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1182#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1183#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1184#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1185#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1216#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1215#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1214#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1204#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1203#L9-3 assume !(avg_~i~0 < 5); 1180#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1181#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1200#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1201#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1202#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1220#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1219#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1218#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1217#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1211#L9-7 [2019-12-07 18:46:46,721 INFO L796 eck$LassoCheckResult]: Loop: 1211#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1210#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1211#L9-7 [2019-12-07 18:46:46,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1218450663, now seen corresponding path program 3 times [2019-12-07 18:46:46,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946139483] [2019-12-07 18:46:46,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-12-07 18:46:46,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946139483] [2019-12-07 18:46:46,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190120704] [2019-12-07 18:46:46,761 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:46:46,806 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-12-07 18:46:46,806 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:46:46,807 INFO L264 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:46:46,809 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:46:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-12-07 18:46:46,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:46:46,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-12-07 18:46:46,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622003429] [2019-12-07 18:46:46,816 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:46:46,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,816 INFO L82 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 5 times [2019-12-07 18:46:46,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496758511] [2019-12-07 18:46:46,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:46,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:46:46,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:46:46,839 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. cyclomatic complexity: 9 Second operand 8 states. [2019-12-07 18:46:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:46,882 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-12-07 18:46:46,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:46:46,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 58 transitions. [2019-12-07 18:46:46,883 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 58 transitions. [2019-12-07 18:46:46,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2019-12-07 18:46:46,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-12-07 18:46:46,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 58 transitions. [2019-12-07 18:46:46,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:46,884 INFO L688 BuchiCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-12-07 18:46:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 58 transitions. [2019-12-07 18:46:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2019-12-07 18:46:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 18:46:46,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-12-07 18:46:46,886 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-12-07 18:46:46,886 INFO L591 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-12-07 18:46:46,886 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-12-07 18:46:46,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 49 transitions. [2019-12-07 18:46:46,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-12-07 18:46:46,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:46,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:46,887 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:46,887 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:46,888 INFO L794 eck$LassoCheckResult]: Stem: 1397#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1396#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1392#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1393#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1394#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1395#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1418#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1416#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1414#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1412#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1410#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1408#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1407#L23-3 assume !(main_~i~1 < 5); 1391#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1381#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1382#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1383#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1384#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1388#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1423#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1422#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1421#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1420#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1404#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1403#L9-3 assume !(avg_~i~0 < 5); 1379#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1380#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1400#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1401#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1402#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1419#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1417#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1415#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1413#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1411#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1409#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1406#L9-7 [2019-12-07 18:46:46,888 INFO L796 eck$LassoCheckResult]: Loop: 1406#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1405#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1406#L9-7 [2019-12-07 18:46:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2144167641, now seen corresponding path program 4 times [2019-12-07 18:46:46,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771149195] [2019-12-07 18:46:46,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 6 times [2019-12-07 18:46:46,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813648824] [2019-12-07 18:46:46,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:46,954 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:46,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:46,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1039200421, now seen corresponding path program 5 times [2019-12-07 18:46:46,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:46,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826031630] [2019-12-07 18:46:46,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:46:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-12-07 18:46:47,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826031630] [2019-12-07 18:46:47,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:46:47,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 18:46:47,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424407203] [2019-12-07 18:46:47,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:46:47,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:46:47,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:46:47,055 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. cyclomatic complexity: 9 Second operand 10 states. [2019-12-07 18:46:47,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:46:47,169 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2019-12-07 18:46:47,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:46:47,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 55 transitions. [2019-12-07 18:46:47,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:46:47,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 42 states and 43 transitions. [2019-12-07 18:46:47,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-12-07 18:46:47,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2019-12-07 18:46:47,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 43 transitions. [2019-12-07 18:46:47,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:46:47,171 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2019-12-07 18:46:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 43 transitions. [2019-12-07 18:46:47,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-12-07 18:46:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-12-07 18:46:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2019-12-07 18:46:47,174 INFO L711 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2019-12-07 18:46:47,174 INFO L591 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2019-12-07 18:46:47,174 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-12-07 18:46:47,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 43 transitions. [2019-12-07 18:46:47,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:46:47,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:46:47,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:46:47,175 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:46:47,175 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:46:47,176 INFO L794 eck$LassoCheckResult]: Stem: 1520#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1517#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post2, main_~i~1, main_#t~ret4, main_#t~mem5, main_#t~mem6, main_#t~ret7, main_#t~mem8, main_#t~mem10, main_#t~post9, main_~i~2, main_#t~ret11, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1513#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1514#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1515#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1516#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1538#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1537#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1535#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1533#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1531#L23-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet3, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet3; 1528#L23-2 main_#t~post2 := main_~i~1;main_~i~1 := 1 + main_#t~post2;havoc main_#t~post2; 1527#L23-3 assume !(main_~i~1 < 5); 1512#L23-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1507#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1508#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1509#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1536#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1534#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1532#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1530#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1529#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1526#L9-3 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1525#L9-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1524#L9-3 assume !(avg_~i~0 < 5); 1505#L9-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1506#L12 main_#t~ret4 := avg_#res;main_~ret~1 := main_#t~ret4;havoc main_#t~ret4;call main_#t~mem5 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem5;havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem6, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem6;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1521#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1522#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1523#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1546#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1545#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1544#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1543#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1542#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1541#L9-8 assume !!(avg_~i~0 < 5);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1540#L9-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1539#L9-8 assume !(avg_~i~0 < 5); 1518#L9-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1519#L12-1 main_#t~ret7 := avg_#res;main_~ret2~0 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;main_~i~2 := 0; 1510#L32-3 [2019-12-07 18:46:47,176 INFO L796 eck$LassoCheckResult]: Loop: 1510#L32-3 assume !!(main_~i~2 < 4);call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem10; 1511#L32-2 main_#t~post9 := main_~i~2;main_~i~2 := 1 + main_#t~post9;havoc main_#t~post9; 1510#L32-3 [2019-12-07 18:46:47,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:47,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2055775835, now seen corresponding path program 1 times [2019-12-07 18:46:47,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:47,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319919365] [2019-12-07 18:46:47,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:47,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:47,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:47,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2755, now seen corresponding path program 1 times [2019-12-07 18:46:47,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:47,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877282995] [2019-12-07 18:46:47,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:47,247 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:46:47,247 INFO L82 PathProgramCache]: Analyzing trace with hash 84380519, now seen corresponding path program 1 times [2019-12-07 18:46:47,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:46:47,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837557476] [2019-12-07 18:46:47,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:46:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:46:47,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:46:50,030 WARN L192 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 368 DAG size of output: 260 [2019-12-07 18:47:13,002 WARN L192 SmtUtils]: Spent 22.35 s on a formula simplification. DAG size of input: 226 DAG size of output: 151 [2019-12-07 18:47:13,005 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:47:13,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:47:13,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:47:13,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:47:13,005 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:47:13,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:13,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:47:13,006 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:47:13,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration14_Lasso [2019-12-07 18:47:13,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:47:13,006 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:47:13,007 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-12-07 18:47:13,096 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 18:47:13,098 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 18:47:13,099 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 18:47:13,100 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 18:47:13,102 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 18:47:13,103 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 18:47:13,104 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 18:47:13,106 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 18:47:13,107 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 18:47:13,597 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 109 [2019-12-07 18:47:18,145 WARN L192 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 145 DAG size of output: 114 [2019-12-07 18:47:18,213 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 18:47:18,214 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 18:47:18,215 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 18:47:18,216 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 18:47:18,217 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 18:47:18,218 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 18:47:18,219 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 18:47:18,220 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 18:47:18,221 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-12-07 18:47:19,997 WARN L192 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 239 DAG size of output: 143 [2019-12-07 18:47:20,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 13 [2019-12-07 18:47:24,396 WARN L192 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 307 DAG size of output: 127 [2019-12-07 18:47:24,427 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:47:24,427 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,430 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 18:47:24,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:47:24,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:47:24,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:47:24,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,438 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 18:47:24,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:47:24,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:47:24,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:47:24,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,445 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 18:47:24,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:47:24,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:47:24,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:47:24,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,452 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 18:47:24,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:47:24,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:47:24,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,460 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 18:47:24,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:47:24,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:47:24,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:47:24,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,466 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 18:47:24,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:47:24,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:47:24,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:47:24,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,474 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 18:47:24,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:47:24,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:47:24,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,482 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 18:47:24,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:47:24,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:47:24,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:47:24,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,489 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 18:47:24,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:47:24,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:47:24,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,498 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 18:47:24,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:47:24,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:47:24,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:47:24,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:47:24,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:47:24,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:47:24,513 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:47:24,532 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 18:47:24,532 INFO L444 ModelExtractionUtils]: 4 out of 25 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f673e645-750a-481c-8fe9-a78b4b163242/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:47:24,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:47:24,537 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:47:24,537 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:47:24,537 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~2) = -2*ULTIMATE.start_main_~i~2 + 7 Supporting invariants [] [2019-12-07 18:47:24,700 INFO L297 tatePredicateManager]: 39 out of 39 supporting invariants were superfluous and have been removed [2019-12-07 18:47:24,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:47:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:47:24,730 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:47:24,732 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:47:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:47:24,737 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:47:24,737 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:47:24,747 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 18:47:24,748 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:47:24,748 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 43 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-12-07 18:47:24,755 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 43 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 44 states and 46 transitions. Complement of second has 4 states. [2019-12-07 18:47:24,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:47:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:47:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-12-07 18:47:24,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 40 letters. Loop has 2 letters. [2019-12-07 18:47:24,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:47:24,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 42 letters. Loop has 2 letters. [2019-12-07 18:47:24,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:47:24,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 40 letters. Loop has 4 letters. [2019-12-07 18:47:24,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:47:24,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 46 transitions. [2019-12-07 18:47:24,757 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:47:24,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2019-12-07 18:47:24,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:47:24,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:47:24,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:47:24,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:47:24,757 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:47:24,757 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:47:24,757 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:47:24,757 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-12-07 18:47:24,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:47:24,757 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:47:24,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:47:24,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:47:24 BoogieIcfgContainer [2019-12-07 18:47:24,761 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:47:24,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:47:24,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:47:24,762 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:47:24,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:46:43" (3/4) ... [2019-12-07 18:47:24,764 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:47:24,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:47:24,765 INFO L168 Benchmark]: Toolchain (without parser) took 41270.72 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 945.1 MB in the beginning and 1.9 GB in the end (delta: -974.4 MB). Peak memory consumption was 509.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:47:24,765 INFO L168 Benchmark]: CDTParser took 0.17 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 18:47:24,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:47:24,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.39 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 18:47:24,766 INFO L168 Benchmark]: Boogie Preprocessor took 19.47 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:47:24,766 INFO L168 Benchmark]: RCFGBuilder took 203.82 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 18:47:24,767 INFO L168 Benchmark]: BuchiAutomizer took 40817.07 ms. Allocated memory was 1.1 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: -851.9 MB). Peak memory consumption was 530.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:47:24,767 INFO L168 Benchmark]: Witness Printer took 2.57 ms. Allocated memory is still 2.5 GB. Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 11.5 GB. [2019-12-07 18:47:24,768 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 198.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.39 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 19.47 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.82 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 40817.07 ms. Allocated memory was 1.1 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: -851.9 MB). Peak memory consumption was 530.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.57 ms. Allocated memory is still 2.5 GB. Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (11 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 9 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 7 and consists of 3 locations. 11 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.7s and 15 iterations. TraceHistogramMax:5. Analysis of lassos took 40.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 14. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 41 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 45 states and ocurred in iteration 12. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 238 SDtfs, 190 SDslu, 454 SDs, 0 SdLazy, 300 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU10 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital2195 mio100 ax100 hnf99 lsp445 ukn40 mio100 lsp215 div80 bol100 ite100 ukn100 eq166 hnf91 smp72 dnf2541 smp67 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...