./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/MultCommutative-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 a755472942b72da612d26a2f3af20ed4332f07b5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:10:02,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:10:02,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:10:02,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:10:02,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:10:02,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:10:02,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:10:02,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:10:02,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:10:02,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:10:02,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:10:02,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:10:02,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:10:02,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:10:02,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:10:02,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:10:02,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:10:02,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:10:02,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:10:02,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:10:02,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:10:02,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:10:02,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:10:02,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:10:02,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:10:02,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:10:02,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:10:02,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:10:02,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:10:02,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:10:02,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:10:02,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:10:02,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:10:02,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:10:02,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:10:02,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:10:02,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:10:02,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:10:02,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:10:02,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:10:02,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:10:02,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 03:10:02,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:10:02,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:10:02,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:10:02,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:10:02,647 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:10:02,647 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 03:10:02,647 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 03:10:02,647 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 03:10:02,647 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 03:10:02,647 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 03:10:02,648 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 03:10:02,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:10:02,648 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:10:02,648 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:10:02,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:10:02,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:10:02,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:10:02,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 03:10:02,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 03:10:02,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 03:10:02,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:10:02,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:10:02,650 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 03:10:02,650 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:10:02,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 03:10:02,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:10:02,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:10:02,651 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 03:10:02,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:10:02,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:10:02,651 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 03:10:02,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 03:10:02,652 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_088c3d3f-e718-4029-a616-b7acce3f16e1/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 -> a755472942b72da612d26a2f3af20ed4332f07b5 [2019-11-20 03:10:02,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:10:02,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:10:02,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:10:02,841 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:10:02,841 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:10:02,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/../../sv-benchmarks/c/recursive/MultCommutative-2.c [2019-11-20 03:10:02,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/data/b89a24243/676e94e32a1349ca81fa6d581434d62d/FLAGcaf0e7c0a [2019-11-20 03:10:03,307 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:10:03,308 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/sv-benchmarks/c/recursive/MultCommutative-2.c [2019-11-20 03:10:03,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/data/b89a24243/676e94e32a1349ca81fa6d581434d62d/FLAGcaf0e7c0a [2019-11-20 03:10:03,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/data/b89a24243/676e94e32a1349ca81fa6d581434d62d [2019-11-20 03:10:03,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:10:03,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:10:03,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:10:03,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:10:03,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:10:03,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:10:03" (1/1) ... [2019-11-20 03:10:03,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd64ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:03, skipping insertion in model container [2019-11-20 03:10:03,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:10:03" (1/1) ... [2019-11-20 03:10:03,748 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:10:03,767 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:10:03,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:10:03,962 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:10:04,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:10:04,062 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:10:04,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04 WrapperNode [2019-11-20 03:10:04,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:10:04,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:10:04,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:10:04,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:10:04,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:10:04,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:10:04,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:10:04,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:10:04,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... [2019-11-20 03:10:04,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:10:04,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:10:04,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:10:04,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:10:04,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2019-11-20 03:10:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2019-11-20 03:10:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:10:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:10:04,357 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:10:04,357 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 03:10:04,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:10:04 BoogieIcfgContainer [2019-11-20 03:10:04,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:10:04,359 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 03:10:04,359 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 03:10:04,362 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 03:10:04,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:10:04,363 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 03:10:03" (1/3) ... [2019-11-20 03:10:04,364 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ac74f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:10:04, skipping insertion in model container [2019-11-20 03:10:04,365 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:10:04,365 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:10:04" (2/3) ... [2019-11-20 03:10:04,365 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ac74f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 03:10:04, skipping insertion in model container [2019-11-20 03:10:04,365 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 03:10:04,365 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:10:04" (3/3) ... [2019-11-20 03:10:04,367 INFO L371 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2019-11-20 03:10:04,409 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 03:10:04,409 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 03:10:04,409 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 03:10:04,410 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:10:04,410 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:10:04,410 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 03:10:04,410 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:10:04,410 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 03:10:04,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-20 03:10:04,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 03:10:04,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:10:04,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:10:04,471 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 03:10:04,471 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 03:10:04,471 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 03:10:04,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-20 03:10:04,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 03:10:04,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:10:04,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:10:04,488 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 03:10:04,488 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 03:10:04,495 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L27true assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L31true assume !(main_~n~0 < 0 || main_~n~0 > 46340); 16#L34true call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 4#multENTRYtrue [2019-11-20 03:10:04,495 INFO L796 eck$LassoCheckResult]: Loop: 4#multENTRYtrue ~n := #in~n;~m := #in~m; 6#L16true assume ~m < 0; 3#L17true call #t~ret0 := mult(~n, -~m);< 4#multENTRYtrue [2019-11-20 03:10:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:04,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425, now seen corresponding path program 1 times [2019-11-20 03:10:04,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:04,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70606977] [2019-11-20 03:10:04,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:04,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:04,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:04,617 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 1 times [2019-11-20 03:10:04,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:04,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696694007] [2019-11-20 03:10:04,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:04,628 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:04,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:04,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1527521652, now seen corresponding path program 1 times [2019-11-20 03:10:04,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:04,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448127725] [2019-11-20 03:10:04,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:04,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:04,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448127725] [2019-11-20 03:10:04,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:10:04,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:10:04,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638078653] [2019-11-20 03:10:04,808 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:04,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:04,809 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:04,809 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:04,809 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:10:04,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:04,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:04,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:04,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2019-11-20 03:10:04,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:04,810 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:04,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:04,922 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:04,923 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:04,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:04,939 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:04,948 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:04,948 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:04,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:04,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:04,962 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:04,962 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:04,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:04,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:04,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:04,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:04,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:04,998 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,003 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:05,003 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:05,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:05,018 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:05,024 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:05,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:05,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:05,048 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:05,063 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:10:05,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:05,132 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:10:05,137 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:05,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:05,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:05,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:05,138 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:10:05,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:05,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:05,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2019-11-20 03:10:05,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:05,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:05,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,241 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:05,246 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:05,258 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 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:05,269 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:05,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:05,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:05,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:05,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:05,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:05,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:05,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:05,337 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 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:05,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:05,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:05,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:05,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:05,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:05,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:05,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:05,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:05,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:05,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:05,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:05,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:05,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:10:05,377 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 03:10:05,377 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:05,394 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:10:05,395 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:10:05,395 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:10:05,395 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2019-11-20 03:10:05,401 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:05,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 03:10:05,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:05,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:10:05,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:05,505 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 03:10:05,506 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 4 states. [2019-11-20 03:10:05,602 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 4 states. Result 50 states and 65 transitions. Complement of second has 12 states. [2019-11-20 03:10:05,603 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 [2019-11-20 03:10:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 03:10:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-20 03:10:05,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-20 03:10:05,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:05,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-20 03:10:05,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:05,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-20 03:10:05,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:05,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. [2019-11-20 03:10:05,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 03:10:05,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 44 transitions. [2019-11-20 03:10:05,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-11-20 03:10:05,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-11-20 03:10:05,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 44 transitions. [2019-11-20 03:10:05,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:10:05,640 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2019-11-20 03:10:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 44 transitions. [2019-11-20 03:10:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2019-11-20 03:10:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 03:10:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-20 03:10:05,682 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-20 03:10:05,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:10:05,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:10:05,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:10:05,686 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 5 states. [2019-11-20 03:10:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:10:05,751 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-20 03:10:05,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:10:05,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-11-20 03:10:05,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 03:10:05,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 33 transitions. [2019-11-20 03:10:05,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-20 03:10:05,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-11-20 03:10:05,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2019-11-20 03:10:05,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:10:05,756 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-11-20 03:10:05,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2019-11-20 03:10:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-20 03:10:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 03:10:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-20 03:10:05,760 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-20 03:10:05,760 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-20 03:10:05,760 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 03:10:05,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2019-11-20 03:10:05,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 03:10:05,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:10:05,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:10:05,766 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:10:05,766 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 03:10:05,767 INFO L794 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 197#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 198#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 192#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 191#multENTRY ~n := #in~n;~m := #in~m; 193#L16 assume !(~m < 0); 194#L19 assume !(0 == ~m); 187#L22 call #t~ret1 := mult(~n, ~m - 1);< 190#multENTRY [2019-11-20 03:10:05,767 INFO L796 eck$LassoCheckResult]: Loop: 190#multENTRY ~n := #in~n;~m := #in~m; 205#L16 assume ~m < 0; 186#L17 call #t~ret0 := mult(~n, -~m);< 190#multENTRY [2019-11-20 03:10:05,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:05,767 INFO L82 PathProgramCache]: Analyzing trace with hash -108528961, now seen corresponding path program 1 times [2019-11-20 03:10:05,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:05,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615845628] [2019-11-20 03:10:05,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:05,812 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 2 times [2019-11-20 03:10:05,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:05,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825809387] [2019-11-20 03:10:05,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:05,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:05,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:05,820 INFO L82 PathProgramCache]: Analyzing trace with hash 924096870, now seen corresponding path program 1 times [2019-11-20 03:10:05,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:05,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748822040] [2019-11-20 03:10:05,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:05,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748822040] [2019-11-20 03:10:05,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:10:05,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:10:05,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454222675] [2019-11-20 03:10:05,919 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:05,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:05,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:05,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:05,920 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:10:05,920 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:05,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:05,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:05,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2019-11-20 03:10:05,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:05,921 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:05,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:05,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,002 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:06,002 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,014 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,018 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:06,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,056 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,084 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,088 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,088 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,106 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,113 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,113 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,130 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,134 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,147 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,152 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,158 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:10:06,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:06,239 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:10:06,241 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:06,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:06,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:06,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:06,241 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:10:06,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:06,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:06,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2019-11-20 03:10:06,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:06,242 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:06,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,304 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:06,305 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:06,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:06,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:06,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:06,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:06,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:06,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:06,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:06,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:06,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:06,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:06,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:06,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:06,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:06,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:06,347 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 Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:06,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:06,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:06,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:06,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:06,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:06,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:06,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:06,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:06,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:06,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:06,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:06,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:06,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:06,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:06,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:06,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:06,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:06,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:06,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:06,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:06,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:06,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:06,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:06,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:06,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:06,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:06,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:06,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,425 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:10:06,427 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 03:10:06,428 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,431 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:10:06,432 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:10:06,432 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:10:06,432 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2019-11-20 03:10:06,443 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:06,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:10:06,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:06,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:10:06,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:06,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:06,528 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 03:10:06,528 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-11-20 03:10:06,624 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 72 states and 91 transitions. Complement of second has 15 states. [2019-11-20 03:10:06,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 03:10:06,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 03:10:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2019-11-20 03:10:06,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-20 03:10:06,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:06,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-20 03:10:06,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:06,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 6 letters. [2019-11-20 03:10:06,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:06,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 91 transitions. [2019-11-20 03:10:06,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-20 03:10:06,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 50 states and 65 transitions. [2019-11-20 03:10:06,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2019-11-20 03:10:06,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2019-11-20 03:10:06,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 65 transitions. [2019-11-20 03:10:06,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:10:06,634 INFO L688 BuchiCegarLoop]: Abstraction has 50 states and 65 transitions. [2019-11-20 03:10:06,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 65 transitions. [2019-11-20 03:10:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2019-11-20 03:10:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-20 03:10:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2019-11-20 03:10:06,640 INFO L711 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2019-11-20 03:10:06,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:10:06,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:10:06,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:10:06,641 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 5 states. [2019-11-20 03:10:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:10:06,704 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2019-11-20 03:10:06,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:10:06,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2019-11-20 03:10:06,707 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2019-11-20 03:10:06,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 47 transitions. [2019-11-20 03:10:06,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2019-11-20 03:10:06,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2019-11-20 03:10:06,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 47 transitions. [2019-11-20 03:10:06,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:10:06,709 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2019-11-20 03:10:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 47 transitions. [2019-11-20 03:10:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-20 03:10:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-20 03:10:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2019-11-20 03:10:06,714 INFO L711 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2019-11-20 03:10:06,714 INFO L591 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2019-11-20 03:10:06,714 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 03:10:06,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 47 transitions. [2019-11-20 03:10:06,716 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2019-11-20 03:10:06,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:10:06,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:10:06,717 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:10:06,717 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 03:10:06,717 INFO L794 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 458#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 459#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 460#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 467#multENTRY ~n := #in~n;~m := #in~m; 479#L16 assume !(~m < 0); 476#L19 assume 0 == ~m;#res := 0; 475#multFINAL assume true; 469#multEXIT >#45#return; 466#L34-1 main_~res1~0 := main_#t~ret4;havoc main_#t~ret4; 451#L35 call main_#t~ret5 := mult(main_~n~0, main_~m~0);< 452#multENTRY [2019-11-20 03:10:06,717 INFO L796 eck$LassoCheckResult]: Loop: 452#multENTRY ~n := #in~n;~m := #in~m; 474#L16 assume ~m < 0; 450#L17 call #t~ret0 := mult(~n, -~m);< 452#multENTRY [2019-11-20 03:10:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash 922353405, now seen corresponding path program 1 times [2019-11-20 03:10:06,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:06,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269927742] [2019-11-20 03:10:06,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:06,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:06,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:06,746 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 3 times [2019-11-20 03:10:06,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:06,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251874647] [2019-11-20 03:10:06,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:06,761 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:06,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:06,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1370471320, now seen corresponding path program 1 times [2019-11-20 03:10:06,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:06,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558269450] [2019-11-20 03:10:06,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:06,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558269450] [2019-11-20 03:10:06,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:10:06,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:10:06,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178639807] [2019-11-20 03:10:06,851 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:06,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:06,852 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:06,852 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:06,852 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:10:06,852 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:06,852 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:06,852 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:06,852 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2019-11-20 03:10:06,852 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:06,852 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:06,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:06,924 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:06,925 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:06,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:06,937 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,938 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:06,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:06,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:06,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:06,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:06,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:06,958 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:06,958 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:06,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:06,963 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:06,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:10:06,986 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,000 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:10:07,002 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:07,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:07,002 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:07,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:07,002 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:10:07,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:07,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:07,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2019-11-20 03:10:07,003 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:07,003 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:07,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,071 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:07,071 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:07,078 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 [2019-11-20 03:10:07,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:07,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:07,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:07,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:07,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:07,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,144 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:10:07,146 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 03:10:07,147 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:07,156 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:10:07,156 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:10:07,157 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:10:07,157 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2019-11-20 03:10:07,159 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:07,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:10:07,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:07,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:10:07,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:07,242 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 03:10:07,242 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 47 transitions. cyclomatic complexity: 9 Second operand 5 states. [2019-11-20 03:10:07,329 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 47 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 81 states and 90 transitions. Complement of second has 14 states. [2019-11-20 03:10:07,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 03:10:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 03:10:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2019-11-20 03:10:07,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-20 03:10:07,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:07,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-20 03:10:07,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:07,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-20 03:10:07,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:07,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 90 transitions. [2019-11-20 03:10:07,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-20 03:10:07,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 62 states and 70 transitions. [2019-11-20 03:10:07,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2019-11-20 03:10:07,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2019-11-20 03:10:07,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 70 transitions. [2019-11-20 03:10:07,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 03:10:07,335 INFO L688 BuchiCegarLoop]: Abstraction has 62 states and 70 transitions. [2019-11-20 03:10:07,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 70 transitions. [2019-11-20 03:10:07,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 35. [2019-11-20 03:10:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 03:10:07,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-11-20 03:10:07,339 INFO L711 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-11-20 03:10:07,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:10:07,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:10:07,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:10:07,340 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2019-11-20 03:10:07,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:10:07,361 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-11-20 03:10:07,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:10:07,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2019-11-20 03:10:07,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-20 03:10:07,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 35 states and 39 transitions. [2019-11-20 03:10:07,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2019-11-20 03:10:07,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-20 03:10:07,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 39 transitions. [2019-11-20 03:10:07,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:10:07,364 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-20 03:10:07,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 39 transitions. [2019-11-20 03:10:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2019-11-20 03:10:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 03:10:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-20 03:10:07,367 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-20 03:10:07,367 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-20 03:10:07,367 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 03:10:07,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2019-11-20 03:10:07,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-20 03:10:07,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:10:07,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:10:07,369 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:10:07,369 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 03:10:07,369 INFO L794 eck$LassoCheckResult]: Stem: 741#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 738#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 739#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 740#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 747#multENTRY ~n := #in~n;~m := #in~m; 754#L16 assume !(~m < 0); 752#L19 assume 0 == ~m;#res := 0; 751#multFINAL assume true; 750#multEXIT >#45#return; 746#L34-1 main_~res1~0 := main_#t~ret4;havoc main_#t~ret4; 736#L35 call main_#t~ret5 := mult(main_~n~0, main_~m~0);< 733#multENTRY [2019-11-20 03:10:07,369 INFO L796 eck$LassoCheckResult]: Loop: 733#multENTRY ~n := #in~n;~m := #in~m; 735#L16 assume !(~m < 0); 737#L19 assume !(0 == ~m); 734#L22 call #t~ret1 := mult(~n, ~m - 1);< 733#multENTRY [2019-11-20 03:10:07,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,369 INFO L82 PathProgramCache]: Analyzing trace with hash 922353405, now seen corresponding path program 2 times [2019-11-20 03:10:07,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:07,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668751485] [2019-11-20 03:10:07,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,382 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:07,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,382 INFO L82 PathProgramCache]: Analyzing trace with hash 929639, now seen corresponding path program 1 times [2019-11-20 03:10:07,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:07,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289651799] [2019-11-20 03:10:07,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,388 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,388 INFO L82 PathProgramCache]: Analyzing trace with hash 465064035, now seen corresponding path program 1 times [2019-11-20 03:10:07,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:07,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124576056] [2019-11-20 03:10:07,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:07,463 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:07,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:07,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:07,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:07,463 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:10:07,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:07,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:07,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2019-11-20 03:10:07,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:07,464 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:07,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,544 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:07,544 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:07,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:07,551 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:07,551 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:07,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:07,558 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:07,558 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:07,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:07,566 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:07,566 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:07,571 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:10:07,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:07,618 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:10:07,620 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:07,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:07,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:07,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:07,620 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:10:07,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:07,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:07,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2019-11-20 03:10:07,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:07,620 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:07,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,692 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:07,692 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:07,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:07,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:07,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:07,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:07,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:07,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:07,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:07,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:07,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:07,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:10:07,725 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 03:10:07,725 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:07,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:10:07,728 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:10:07,729 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:10:07,729 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2019-11-20 03:10:07,730 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 03:10:07,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:07,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 03:10:07,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:07,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:10:07,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:07,807 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 03:10:07,807 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 35 transitions. cyclomatic complexity: 6 Second operand 5 states. [2019-11-20 03:10:07,865 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 35 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 41 states and 45 transitions. Complement of second has 13 states. [2019-11-20 03:10:07,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 03:10:07,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 03:10:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-20 03:10:07,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-20 03:10:07,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:07,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2019-11-20 03:10:07,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:07,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2019-11-20 03:10:07,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:07,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 45 transitions. [2019-11-20 03:10:07,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 03:10:07,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 15 states and 15 transitions. [2019-11-20 03:10:07,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 03:10:07,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 03:10:07,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 15 transitions. [2019-11-20 03:10:07,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:10:07,871 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-11-20 03:10:07,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 15 transitions. [2019-11-20 03:10:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2019-11-20 03:10:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-20 03:10:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-20 03:10:07,872 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-20 03:10:07,872 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-20 03:10:07,872 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 03:10:07,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 8 transitions. [2019-11-20 03:10:07,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 03:10:07,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 03:10:07,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 03:10:07,873 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 03:10:07,873 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 03:10:07,873 INFO L794 eck$LassoCheckResult]: Stem: 892#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 893#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 886#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 887#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 889#multENTRY [2019-11-20 03:10:07,874 INFO L796 eck$LassoCheckResult]: Loop: 889#multENTRY ~n := #in~n;~m := #in~m; 890#L16 assume !(~m < 0); 891#L19 assume !(0 == ~m); 888#L22 call #t~ret1 := mult(~n, ~m - 1);< 889#multENTRY [2019-11-20 03:10:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425, now seen corresponding path program 2 times [2019-11-20 03:10:07,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:07,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552497778] [2019-11-20 03:10:07,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,880 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,880 INFO L82 PathProgramCache]: Analyzing trace with hash 929639, now seen corresponding path program 2 times [2019-11-20 03:10:07,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:07,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663782444] [2019-11-20 03:10:07,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:07,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:07,887 INFO L82 PathProgramCache]: Analyzing trace with hash -108528961, now seen corresponding path program 2 times [2019-11-20 03:10:07,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:10:07,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437175895] [2019-11-20 03:10:07,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:10:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 03:10:07,896 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 03:10:07,966 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:07,966 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:07,966 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:07,966 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:07,966 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 03:10:07,966 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:07,966 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:07,966 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:07,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2019-11-20 03:10:07,966 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:07,966 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:07,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:07,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,024 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:08,025 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:08,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:08,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:08,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:08,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:08,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:08,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:08,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:08,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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) [2019-11-20 03:10:08,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:08,044 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:08,047 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:08,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:08,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:08,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:08,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/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 [2019-11-20 03:10:08,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:08,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:08,063 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 03:10:08,063 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:08,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 03:10:08,067 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 03:10:08,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 03:10:08,114 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 03:10:08,116 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 03:10:08,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 03:10:08,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 03:10:08,116 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 03:10:08,116 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 03:10:08,116 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,116 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 03:10:08,116 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 03:10:08,116 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2019-11-20 03:10:08,116 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 03:10:08,116 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 03:10:08,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 03:10:08,194 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 03:10:08,194 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:08,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:08,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:08,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:08,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:08,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:08,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:08,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:08,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 03:10:08,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:08,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:08,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:08,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:08,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:08,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:08,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:08,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:08,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:08,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:08,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:08,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:08,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:08,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:08,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:08,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:08,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:08,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:08,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:08,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:08,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:08,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:08,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:08,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:08,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:08,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:08,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:08,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:08,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:08,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:08,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:08,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 03:10:08,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 03:10:08,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 03:10:08,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 03:10:08,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 03:10:08,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 03:10:08,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 03:10:08,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 03:10:08,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 03:10:08,260 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 03:10:08,260 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_088c3d3f-e718-4029-a616-b7acce3f16e1/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 03:10:08,264 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 03:10:08,265 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 03:10:08,265 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 03:10:08,265 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2019-11-20 03:10:08,266 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 03:10:08,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:10:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:08,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 03:10:08,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:10:08,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 03:10:08,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:10:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:10:08,307 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 03:10:08,307 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 8 transitions. cyclomatic complexity: 1 Second operand 4 states. [2019-11-20 03:10:08,348 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 8 transitions. cyclomatic complexity: 1. Second operand 4 states. Result 18 states and 18 transitions. Complement of second has 11 states. [2019-11-20 03:10:08,349 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 [2019-11-20 03:10:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 03:10:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-20 03:10:08,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-20 03:10:08,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:08,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2019-11-20 03:10:08,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:08,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2019-11-20 03:10:08,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 03:10:08,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 18 transitions. [2019-11-20 03:10:08,351 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 03:10:08,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-11-20 03:10:08,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 03:10:08,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 03:10:08,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 03:10:08,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 03:10:08,352 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:10:08,352 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:10:08,352 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:10:08,352 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 03:10:08,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:10:08,352 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 03:10:08,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 03:10:08,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 03:10:08 BoogieIcfgContainer [2019-11-20 03:10:08,362 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 03:10:08,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:10:08,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:10:08,364 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:10:08,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:10:04" (3/4) ... [2019-11-20 03:10:08,367 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 03:10:08,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:10:08,370 INFO L168 Benchmark]: Toolchain (without parser) took 4649.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:10:08,370 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:10:08,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -226.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:10:08,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:10:08,371 INFO L168 Benchmark]: Boogie Preprocessor took 23.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:10:08,372 INFO L168 Benchmark]: RCFGBuilder took 236.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 03:10:08,372 INFO L168 Benchmark]: BuchiAutomizer took 4003.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 74.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:10:08,372 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:10:08,374 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -226.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 236.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4003.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 74.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 2. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 120 SDtfs, 136 SDslu, 102 SDs, 0 SdLazy, 159 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp80 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf94 smp84 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...