./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ab4fc7901859c456c176827e7d5fcf9e4988b17 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:49:04,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:49:04,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:49:04,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:49:04,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:49:04,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:49:04,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:49:04,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:49:04,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:49:04,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:49:04,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:49:04,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:49:04,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:49:04,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:49:04,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:49:04,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:49:04,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:49:04,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:49:04,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:49:04,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:49:04,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:49:04,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:49:04,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:49:04,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:49:04,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:49:04,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:49:04,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:49:04,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:49:04,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:49:04,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:49:04,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:49:04,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:49:04,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:49:04,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:49:04,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:49:04,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:49:04,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:49:04,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:49:04,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:49:04,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:49:04,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:49:04,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:49:04,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:49:04,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:49:04,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:49:04,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:49:04,796 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:49:04,796 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:49:04,796 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:49:04,796 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:49:04,796 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:49:04,797 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:49:04,797 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:49:04,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:49:04,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:49:04,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:49:04,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:49:04,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:49:04,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:49:04,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:49:04,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:49:04,798 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:49:04,799 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:49:04,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:49:04,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:49:04,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:49:04,799 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:49:04,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:49:04,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:49:04,800 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:49:04,801 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:49:04,801 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_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab4fc7901859c456c176827e7d5fcf9e4988b17 [2019-11-25 08:49:04,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:49:04,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:49:04,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:49:04,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:49:04,965 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:49:04,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2019-11-25 08:49:05,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/data/b1fd54858/8fa8e23f81924cdeb3805599ab1711f1/FLAG025b761de [2019-11-25 08:49:05,450 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:49:05,456 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2019-11-25 08:49:05,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/data/b1fd54858/8fa8e23f81924cdeb3805599ab1711f1/FLAG025b761de [2019-11-25 08:49:05,479 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/data/b1fd54858/8fa8e23f81924cdeb3805599ab1711f1 [2019-11-25 08:49:05,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:49:05,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:49:05,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:05,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:49:05,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:49:05,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:05" (1/1) ... [2019-11-25 08:49:05,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c85197b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:05, skipping insertion in model container [2019-11-25 08:49:05,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:05" (1/1) ... [2019-11-25 08:49:05,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:49:05,528 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:49:05,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:05,949 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:49:05,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:06,034 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:49:06,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06 WrapperNode [2019-11-25 08:49:06,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:06,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:06,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:49:06,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:49:06,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:06,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:49:06,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:49:06,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:49:06,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... [2019-11-25 08:49:06,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:49:06,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:49:06,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:49:06,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:49:06,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:49:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:49:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:49:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:49:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:49:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:49:06,427 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:49:06,428 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:49:06,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:06 BoogieIcfgContainer [2019-11-25 08:49:06,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:49:06,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:49:06,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:49:06,433 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:49:06,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:06,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:49:05" (1/3) ... [2019-11-25 08:49:06,434 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@190c2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:06, skipping insertion in model container [2019-11-25 08:49:06,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:06,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:06" (2/3) ... [2019-11-25 08:49:06,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@190c2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:06, skipping insertion in model container [2019-11-25 08:49:06,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:06,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:06" (3/3) ... [2019-11-25 08:49:06,445 INFO L371 chiAutomizerObserver]: Analyzing ICFG Ben-Amram-2010LMCS-Ex2.3-alloca.i [2019-11-25 08:49:06,494 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:49:06,494 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:49:06,494 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:49:06,494 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:49:06,494 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:49:06,495 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:49:06,495 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:49:06,495 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:49:06,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:49:06,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:06,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:06,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:06,531 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:49:06,531 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:06,532 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:49:06,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-25 08:49:06,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:06,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:06,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:06,534 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:49:06,534 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:06,542 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 5#L555-2true [2019-11-25 08:49:06,543 INFO L796 eck$LassoCheckResult]: Loop: 5#L555-2true call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 6#L554-1true assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 9#L554-3true main_#t~short12 := main_#t~short10; 11#L554-4true assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 4#L554-6true assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 12#L555true assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 5#L555-2true [2019-11-25 08:49:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:06,549 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-25 08:49:06,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:06,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269933409] [2019-11-25 08:49:06,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:06,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:06,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:06,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 1 times [2019-11-25 08:49:06,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:06,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232667861] [2019-11-25 08:49:06,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:06,761 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:06,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:06,762 INFO L82 PathProgramCache]: Analyzing trace with hash 177626380, now seen corresponding path program 1 times [2019-11-25 08:49:06,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:06,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817873345] [2019-11-25 08:49:06,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:06,837 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:07,175 WARN L192 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-11-25 08:49:07,613 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-11-25 08:49:07,766 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-25 08:49:07,786 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:07,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:07,788 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:07,788 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:07,788 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:07,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:07,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:07,789 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:07,789 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration1_Lasso [2019-11-25 08:49:07,789 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:07,790 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:07,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:07,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:07,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:07,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,211 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-11-25 08:49:08,382 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-11-25 08:49:08,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:08,696 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2019-11-25 08:49:09,069 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:09,074 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:09,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:09,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:09,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:09,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:09,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:09,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:09,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:09,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:09,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:09,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:09,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:09,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:09,239 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:09,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:09,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:09,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:09,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:09,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:09,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:09,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:09,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:09,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:09,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:09,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:09,496 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-25 08:49:09,496 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:09,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:09,546 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:49:09,546 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:09,547 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1 Supporting invariants [] [2019-11-25 08:49:09,670 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2019-11-25 08:49:09,677 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:49:09,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:49:09,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:49:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:09,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:49:09,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:09,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:49:09,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:09,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:09,873 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 [2019-11-25 08:49:09,874 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 5 states. [2019-11-25 08:49:10,024 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 5 states. Result 36 states and 47 transitions. Complement of second has 10 states. [2019-11-25 08:49:10,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-25 08:49:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2019-11-25 08:49:10,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-25 08:49:10,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:10,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 8 letters. Loop has 6 letters. [2019-11-25 08:49:10,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:10,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 12 letters. [2019-11-25 08:49:10,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:10,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2019-11-25 08:49:10,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:10,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 20 states and 29 transitions. [2019-11-25 08:49:10,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-25 08:49:10,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-25 08:49:10,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 29 transitions. [2019-11-25 08:49:10,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:10,045 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-25 08:49:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 29 transitions. [2019-11-25 08:49:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-25 08:49:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-25 08:49:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-11-25 08:49:10,069 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-25 08:49:10,070 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-11-25 08:49:10,070 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:49:10,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2019-11-25 08:49:10,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:10,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:10,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:10,071 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:10,072 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:10,072 INFO L794 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 209#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 210#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 215#L554-1 assume !main_#t~short10; 216#L554-3 main_#t~short12 := main_#t~short10; 219#L554-4 assume !main_#t~short12; 205#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 206#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 211#L555-2 [2019-11-25 08:49:10,072 INFO L796 eck$LassoCheckResult]: Loop: 211#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 212#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 224#L554-3 main_#t~short12 := main_#t~short10; 223#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 222#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 221#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 211#L555-2 [2019-11-25 08:49:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:10,073 INFO L82 PathProgramCache]: Analyzing trace with hash 179475346, now seen corresponding path program 1 times [2019-11-25 08:49:10,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:10,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246403610] [2019-11-25 08:49:10,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:10,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246403610] [2019-11-25 08:49:10,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:10,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:49:10,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328253977] [2019-11-25 08:49:10,149 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:49:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:10,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 2 times [2019-11-25 08:49:10,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:10,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647381823] [2019-11-25 08:49:10,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:10,181 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:10,410 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-11-25 08:49:10,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:10,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:49:10,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:49:10,474 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-25 08:49:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:10,492 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2019-11-25 08:49:10,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:49:10,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2019-11-25 08:49:10,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:10,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 20 states and 26 transitions. [2019-11-25 08:49:10,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-25 08:49:10,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-25 08:49:10,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2019-11-25 08:49:10,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:10,495 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-25 08:49:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2019-11-25 08:49:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-25 08:49:10,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-25 08:49:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2019-11-25 08:49:10,498 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-25 08:49:10,498 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-25 08:49:10,498 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:49:10,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2019-11-25 08:49:10,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:10,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:10,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:10,500 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:10,500 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:10,500 INFO L794 eck$LassoCheckResult]: Stem: 267#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 254#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 255#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 264#L554-1 assume !main_#t~short10; 265#L554-3 main_#t~short12 := main_#t~short10; 268#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 256#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 257#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 260#L555-2 [2019-11-25 08:49:10,501 INFO L796 eck$LassoCheckResult]: Loop: 260#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 261#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 273#L554-3 main_#t~short12 := main_#t~short10; 272#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 271#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 270#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 260#L555-2 [2019-11-25 08:49:10,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:10,501 INFO L82 PathProgramCache]: Analyzing trace with hash 179473424, now seen corresponding path program 1 times [2019-11-25 08:49:10,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:10,502 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975005525] [2019-11-25 08:49:10,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:10,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:10,547 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975005525] [2019-11-25 08:49:10,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:10,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:49:10,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139211872] [2019-11-25 08:49:10,548 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:49:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 3 times [2019-11-25 08:49:10,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:10,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387809517] [2019-11-25 08:49:10,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:10,597 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:10,909 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-11-25 08:49:10,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:10,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:49:10,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:49:10,985 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-25 08:49:11,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:11,019 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-11-25 08:49:11,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:49:11,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2019-11-25 08:49:11,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:11,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2019-11-25 08:49:11,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-25 08:49:11,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-25 08:49:11,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2019-11-25 08:49:11,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:11,024 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-25 08:49:11,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2019-11-25 08:49:11,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-25 08:49:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-25 08:49:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-11-25 08:49:11,026 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-25 08:49:11,026 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-25 08:49:11,026 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:49:11,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2019-11-25 08:49:11,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:11,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:11,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:11,027 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:11,027 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:11,028 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 313#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 314#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 319#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 320#L554-3 main_#t~short12 := main_#t~short10; 323#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 309#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 310#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 315#L555-2 [2019-11-25 08:49:11,028 INFO L796 eck$LassoCheckResult]: Loop: 315#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 316#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 328#L554-3 main_#t~short12 := main_#t~short10; 327#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 326#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 325#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 315#L555-2 [2019-11-25 08:49:11,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:11,028 INFO L82 PathProgramCache]: Analyzing trace with hash 177626382, now seen corresponding path program 1 times [2019-11-25 08:49:11,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:11,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252239815] [2019-11-25 08:49:11,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,103 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:11,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 4 times [2019-11-25 08:49:11,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:11,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633345338] [2019-11-25 08:49:11,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:11,151 INFO L82 PathProgramCache]: Analyzing trace with hash -692497897, now seen corresponding path program 1 times [2019-11-25 08:49:11,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:11,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150638883] [2019-11-25 08:49:11,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:11,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150638883] [2019-11-25 08:49:11,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945493963] [2019-11-25 08:49:11,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:11,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:49:11,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:11,397 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:11,397 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 100 [2019-11-25 08:49:11,398 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:11,433 INFO L567 ElimStorePlain]: treesize reduction 55, result has 32.9 percent of original size [2019-11-25 08:49:11,434 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:49:11,434 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:92, output treesize:24 [2019-11-25 08:49:11,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:11,459 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-25 08:49:11,460 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:11,467 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:11,468 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2019-11-25 08:49:11,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:11,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:11,471 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-25 08:49:11,477 INFO L567 ElimStorePlain]: treesize reduction 20, result has 13.0 percent of original size [2019-11-25 08:49:11,477 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:49:11,478 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:3 [2019-11-25 08:49:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:11,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:49:11,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-11-25 08:49:11,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058819732] [2019-11-25 08:49:11,719 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2019-11-25 08:49:11,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:11,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:49:11,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:49:11,780 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand 8 states. [2019-11-25 08:49:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:11,870 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-11-25 08:49:11,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:49:11,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2019-11-25 08:49:11,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:11,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2019-11-25 08:49:11,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-25 08:49:11,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-25 08:49:11,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2019-11-25 08:49:11,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:11,873 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-11-25 08:49:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2019-11-25 08:49:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2019-11-25 08:49:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-25 08:49:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-25 08:49:11,876 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-25 08:49:11,876 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-25 08:49:11,876 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:49:11,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2019-11-25 08:49:11,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:11,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:11,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:11,877 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:49:11,877 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:11,878 INFO L794 eck$LassoCheckResult]: Stem: 419#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 411#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 412#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 414#L554-1 [2019-11-25 08:49:11,878 INFO L796 eck$LassoCheckResult]: Loop: 414#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 417#L554-3 main_#t~short12 := main_#t~short10; 420#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 407#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 408#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 413#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 414#L554-1 [2019-11-25 08:49:11,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:11,878 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-25 08:49:11,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:11,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574449981] [2019-11-25 08:49:11,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,910 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:11,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 1 times [2019-11-25 08:49:11,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:11,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124473922] [2019-11-25 08:49:11,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,944 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:11,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1211450553, now seen corresponding path program 2 times [2019-11-25 08:49:11,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:11,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210183531] [2019-11-25 08:49:11,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:11,992 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:12,278 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-11-25 08:49:12,426 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-11-25 08:49:12,701 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-11-25 08:49:12,988 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-25 08:49:12,991 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:12,991 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:12,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:12,992 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:12,992 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:12,992 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:12,992 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:12,992 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:12,992 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration5_Lasso [2019-11-25 08:49:12,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:12,992 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:12,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,640 WARN L192 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-11-25 08:49:13,810 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-11-25 08:49:13,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:13,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:14,474 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:14,475 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:14,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:14,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:14,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:14,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:14,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:14,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:14,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:14,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:14,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:14,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:14,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:14,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:14,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:14,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:14,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:14,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:14,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:14,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:14,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:14,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:14,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:14,614 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:14,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:14,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:14,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:14,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:14,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:14,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:14,629 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:14,646 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-25 08:49:14,646 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:14,650 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:14,652 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:49:14,652 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:14,652 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_2 Supporting invariants [] [2019-11-25 08:49:14,758 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2019-11-25 08:49:14,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:49:14,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:14,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:49:14,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:14,818 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:14,819 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-25 08:49:14,819 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:14,829 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:14,830 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:49:14,830 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-11-25 08:49:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:14,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:49:14,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:14,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:14,930 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:14,930 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-11-25 08:49:14,931 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:14,962 INFO L567 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-11-25 08:49:14,963 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:49:14,963 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-11-25 08:49:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:14,999 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-11-25 08:49:14,999 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 7 states. [2019-11-25 08:49:15,093 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand 7 states. Result 37 states and 40 transitions. Complement of second has 10 states. [2019-11-25 08:49:15,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:49:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-11-25 08:49:15,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-25 08:49:15,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:15,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:49:15,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:15,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 12 letters. [2019-11-25 08:49:15,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:15,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 40 transitions. [2019-11-25 08:49:15,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:15,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 20 states and 21 transitions. [2019-11-25 08:49:15,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-25 08:49:15,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-25 08:49:15,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 21 transitions. [2019-11-25 08:49:15,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:49:15,098 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-25 08:49:15,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 21 transitions. [2019-11-25 08:49:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2019-11-25 08:49:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-25 08:49:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-25 08:49:15,100 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-25 08:49:15,100 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-25 08:49:15,100 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:49:15,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2019-11-25 08:49:15,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:49:15,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:15,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:15,101 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:15,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:49:15,102 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 623#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~mem13, main_#t~mem14, main_#t~mem15, main_#t~nondet16, main_#t~mem17, main_#t~mem18, main_#t~nondet19, main_#t~mem20, main_#t~mem8, main_#t~mem9, main_#t~short10, main_#t~mem11, main_#t~short12, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~z~0.base, main_~z~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~z~0.base, main_~z~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(main_#t~nondet5, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet5;call write~int(main_#t~nondet6, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet6;call write~int(main_#t~nondet7, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~nondet7; 624#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 625#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 629#L554-3 main_#t~short12 := main_#t~short10; 632#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 621#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 622#L555 assume main_#t~mem13 > main_#t~mem14;havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem15 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem15, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem15;call write~int(main_#t~nondet16, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet16;call main_#t~mem17 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem17 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem17; 626#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 627#L554-1 [2019-11-25 08:49:15,102 INFO L796 eck$LassoCheckResult]: Loop: 627#L554-1 assume main_#t~short10;call main_#t~mem9 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short10 := main_#t~mem9 > 0; 628#L554-3 main_#t~short12 := main_#t~short10; 631#L554-4 assume main_#t~short12;call main_#t~mem11 := read~int(main_~z~0.base, main_~z~0.offset, 4);main_#t~short12 := main_#t~mem11 > 0; 619#L554-6 assume !!main_#t~short12;havoc main_#t~short12;havoc main_#t~mem9;havoc main_#t~mem11;havoc main_#t~mem8;havoc main_#t~short10;call main_#t~mem13 := read~int(main_~y~0.base, main_~y~0.offset, 4);call main_#t~mem14 := read~int(main_~x~0.base, main_~x~0.offset, 4); 620#L555 assume !(main_#t~mem13 > main_#t~mem14);havoc main_#t~mem13;havoc main_#t~mem14;call main_#t~mem18 := read~int(main_~z~0.base, main_~z~0.offset, 4);call write~int(main_#t~mem18 - 1, main_~z~0.base, main_~z~0.offset, 4);havoc main_#t~mem18;call write~int(main_#t~nondet19, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet19;call main_#t~mem20 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem20 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem20; 633#L555-2 call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short10 := main_#t~mem8 > 0; 627#L554-1 [2019-11-25 08:49:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:15,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1211450491, now seen corresponding path program 2 times [2019-11-25 08:49:15,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:15,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404751702] [2019-11-25 08:49:15,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:15,126 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:15,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 2 times [2019-11-25 08:49:15,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:15,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722507454] [2019-11-25 08:49:15,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:15,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:15,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:15,141 INFO L82 PathProgramCache]: Analyzing trace with hash 816748368, now seen corresponding path program 2 times [2019-11-25 08:49:15,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:15,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934751383] [2019-11-25 08:49:15,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:15,173 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:15,400 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-11-25 08:49:15,546 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-11-25 08:49:16,339 WARN L192 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 123 [2019-11-25 08:49:16,977 WARN L192 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-25 08:49:16,984 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:16,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:16,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:16,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:16,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:16,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:16,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:16,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:16,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration6_Lasso [2019-11-25 08:49:16,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:16,985 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:16,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:16,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:16,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:16,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,773 WARN L192 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-11-25 08:49:17,930 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-11-25 08:49:17,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:17,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:18,510 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2019-11-25 08:49:18,622 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:18,622 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:18,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:18,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:18,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,701 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 [2019-11-25 08:49:18,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,718 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 [2019-11-25 08:49:18,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:18,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:18,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:18,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:18,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:18,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:18,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:18,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:18,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:18,784 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:18,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:18,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:18,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:18,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:18,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:18,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:18,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:18,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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 [2019-11-25 08:49:18,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:49:18,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:18,858 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-25 08:49:18,858 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-25 08:49:18,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:18,880 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-11-25 08:49:18,880 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-25 08:49:18,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:18,980 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-25 08:49:18,980 INFO L444 ModelExtractionUtils]: 16 out of 36 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d75a0e23-8660-4e2c-9638-c23f3abf2c94/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) [2019-11-25 08:49:18,984 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:18,992 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2019-11-25 08:49:18,993 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:18,993 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0.base) ULTIMATE.start_main_~z~0.offset)_3 Supporting invariants [] [2019-11-25 08:49:19,105 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2019-11-25 08:49:19,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:49:19,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,152 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,152 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-25 08:49:19,152 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,158 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,158 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,158 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-11-25 08:49:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:19,242 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,242 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-11-25 08:49:19,243 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,274 INFO L567 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-11-25 08:49:19,275 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:49:19,275 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-11-25 08:49:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:19,299 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-11-25 08:49:19,299 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 7 states. [2019-11-25 08:49:19,358 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 7 states. Result 24 states and 25 transitions. Complement of second has 10 states. [2019-11-25 08:49:19,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:49:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-11-25 08:49:19,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:49:19,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:19,360 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:49:19,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,408 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,409 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-25 08:49:19,409 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,417 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,417 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,417 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-11-25 08:49:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:19,531 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,532 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-11-25 08:49:19,532 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,584 INFO L567 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-11-25 08:49:19,585 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:49:19,585 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-11-25 08:49:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:19,619 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2019-11-25 08:49:19,619 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 7 states. [2019-11-25 08:49:19,672 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 7 states. Result 24 states and 25 transitions. Complement of second has 10 states. [2019-11-25 08:49:19,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:49:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-11-25 08:49:19,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:49:19,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:19,673 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:49:19,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,721 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,722 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-25 08:49:19,722 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,727 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,728 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,728 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-11-25 08:49:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:49:19,807 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:49:19,807 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 58 [2019-11-25 08:49:19,808 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:49:19,837 INFO L567 ElimStorePlain]: treesize reduction 18, result has 73.1 percent of original size [2019-11-25 08:49:19,838 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-25 08:49:19,838 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:108, output treesize:42 [2019-11-25 08:49:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:19,864 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-11-25 08:49:19,864 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 7 states. [2019-11-25 08:49:19,929 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 7 states. Result 26 states and 28 transitions. Complement of second has 11 states. [2019-11-25 08:49:19,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:49:19,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2019-11-25 08:49:19,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-25 08:49:19,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:19,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-25 08:49:19,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:19,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 12 letters. [2019-11-25 08:49:19,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:19,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 28 transitions. [2019-11-25 08:49:19,936 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:49:19,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-11-25 08:49:19,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:49:19,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:49:19,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:49:19,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:49:19,937 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:19,937 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:19,937 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:19,937 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-25 08:49:19,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:49:19,937 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:49:19,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:49:19,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:49:19 BoogieIcfgContainer [2019-11-25 08:49:19,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:49:19,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:49:19,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:49:19,944 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:49:19,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:06" (3/4) ... [2019-11-25 08:49:19,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:49:19,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:49:19,949 INFO L168 Benchmark]: Toolchain (without parser) took 14465.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 245.4 MB). Free memory was 943.4 MB in the beginning and 973.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 215.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:19,949 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:19,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:19,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:19,950 INFO L168 Benchmark]: Boogie Preprocessor took 22.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:19,951 INFO L168 Benchmark]: RCFGBuilder took 324.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:19,951 INFO L168 Benchmark]: BuchiAutomizer took 13513.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.5 MB). Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 123.9 MB). Peak memory consumption was 232.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:19,951 INFO L168 Benchmark]: Witness Printer took 4.06 ms. Allocated memory is still 1.3 GB. Free memory is still 973.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:19,954 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 550.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 324.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13513.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.5 MB). Free memory was 1.1 GB in the beginning and 973.2 MB in the end (delta: 123.9 MB). Peak memory consumption was 232.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.06 ms. Allocated memory is still 1.3 GB. Free memory is still 973.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + unknown-#memory_int-unknown[z][z] + unknown-#memory_int-unknown[y][y] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.4s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 11.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 47 SDtfs, 51 SDslu, 48 SDs, 0 SdLazy, 144 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital1016 mio100 ax103 hnf99 lsp64 ukn54 mio100 lsp30 div100 bol104 ite100 ukn100 eq174 hnf88 smp97 dnf214 smp66 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 141ms VariablesStem: 7 VariablesLoop: 10 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...