./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 9d3cc6bed79d5f36ef86c37a4cddb412902bd9be 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:26:30,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:26:30,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:26:31,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:26:31,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:26:31,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:26:31,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:26:31,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:26:31,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:26:31,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:26:31,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:26:31,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:26:31,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:26:31,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:26:31,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:26:31,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:26:31,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:26:31,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:26:31,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:26:31,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:26:31,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:26:31,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:26:31,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:26:31,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:26:31,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:26:31,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:26:31,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:26:31,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:26:31,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:26:31,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:26:31,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:26:31,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:26:31,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:26:31,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:26:31,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:26:31,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:26:31,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:26:31,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:26:31,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:26:31,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:26:31,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:26:31,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 15:26:31,148 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:26:31,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:26:31,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:26:31,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:26:31,151 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:26:31,151 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:26:31,151 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:26:31,151 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:26:31,152 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:26:31,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:26:31,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:26:31,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:26:31,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:26:31,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:26:31,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:26:31,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:26:31,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:26:31,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:26:31,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:26:31,155 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:26:31,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:26:31,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:26:31,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:26:31,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:26:31,156 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:26:31,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:26:31,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:26:31,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:26:31,157 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:26:31,159 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:26:31,159 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d3cc6bed79d5f36ef86c37a4cddb412902bd9be [2020-12-01 15:26:31,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:26:31,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:26:31,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:26:31,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:26:31,488 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:26:31,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2020-12-01 15:26:31,575 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/data/8ea9c29f1/1dd1c21c6dd84db083917d46b76dda5f/FLAG803557316 [2020-12-01 15:26:32,286 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:26:32,293 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2020-12-01 15:26:32,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/data/8ea9c29f1/1dd1c21c6dd84db083917d46b76dda5f/FLAG803557316 [2020-12-01 15:26:32,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/data/8ea9c29f1/1dd1c21c6dd84db083917d46b76dda5f [2020-12-01 15:26:32,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:26:32,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:26:32,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:26:32,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:26:32,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:26:32,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:26:32" (1/1) ... [2020-12-01 15:26:32,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57acf2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:32, skipping insertion in model container [2020-12-01 15:26:32,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:26:32" (1/1) ... [2020-12-01 15:26:32,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:26:32,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:26:33,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:26:33,129 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:26:33,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:26:33,260 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:26:33,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33 WrapperNode [2020-12-01 15:26:33,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:26:33,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:26:33,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:26:33,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:26:33,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:26:33,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:26:33,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:26:33,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:26:33,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... [2020-12-01 15:26:33,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:26:33,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:26:33,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:26:33,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:26:33,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:26:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:26:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:26:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:26:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:26:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:26:33,952 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:26:33,952 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 15:26:33,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:26:33 BoogieIcfgContainer [2020-12-01 15:26:33,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:26:33,976 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:26:33,976 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:26:33,980 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:26:33,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:26:33,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:26:32" (1/3) ... [2020-12-01 15:26:33,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f1e24b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:26:33, skipping insertion in model container [2020-12-01 15:26:33,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:26:33,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:26:33" (2/3) ... [2020-12-01 15:26:33,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f1e24b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:26:33, skipping insertion in model container [2020-12-01 15:26:33,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:26:33,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:26:33" (3/3) ... [2020-12-01 15:26:33,990 INFO L389 chiAutomizerObserver]: Analyzing ICFG Urban-alloca.i [2020-12-01 15:26:34,100 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:26:34,100 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:26:34,100 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:26:34,101 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:26:34,101 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:26:34,101 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:26:34,101 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:26:34,102 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:26:34,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 15:26:34,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-12-01 15:26:34,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:34,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:34,145 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:26:34,145 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:34,146 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:26:34,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-12-01 15:26:34,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-12-01 15:26:34,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:34,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:34,149 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:26:34,149 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:34,159 INFO L794 eck$LassoCheckResult]: Stem: 4#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~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 8#L559-2true [2020-12-01 15:26:34,160 INFO L796 eck$LassoCheckResult]: Loop: 8#L559-2true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 13#L550-1true assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6#L550-3true assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 9#L551true assume main_#t~mem7 > 0;havoc main_#t~mem7; 7#L552true assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 8#L559-2true [2020-12-01 15:26:34,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:34,167 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-12-01 15:26:34,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:34,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031623381] [2020-12-01 15:26:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:34,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:34,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:34,333 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:34,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:34,336 INFO L82 PathProgramCache]: Analyzing trace with hash 35409681, now seen corresponding path program 1 times [2020-12-01 15:26:34,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:34,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680859508] [2020-12-01 15:26:34,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:34,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:34,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:34,447 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:34,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:34,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 1 times [2020-12-01 15:26:34,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:34,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705187866] [2020-12-01 15:26:34,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:34,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:34,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:34,514 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:34,743 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-12-01 15:26:34,977 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-01 15:26:35,062 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:35,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:35,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:35,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:35,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:35,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:35,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:35,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:35,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration1_Lasso [2020-12-01 15:26:35,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:35,065 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:35,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,377 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-12-01 15:26:35,512 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-01 15:26:35,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:36,169 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:36,175 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:36,200 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 [2020-12-01 15:26:36,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:36,276 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 [2020-12-01 15:26:36,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:36,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:36,420 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 [2020-12-01 15:26:36,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:36,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,484 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 [2020-12-01 15:26:36,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:36,576 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 [2020-12-01 15:26:36,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:36,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:36,689 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 [2020-12-01 15:26:36,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,700 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 [2020-12-01 15:26:36,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:36,769 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 [2020-12-01 15:26:36,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,785 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:36,799 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:26:36,799 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:36,806 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:26:36,807 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:26:36,807 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:36,808 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) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,918 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:36,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:37,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:26:37,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:37,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:26:37,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:37,311 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 [2020-12-01 15:26:37,313 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 5 states. [2020-12-01 15:26:37,518 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 5 states. Result 54 states and 72 transitions. Complement of second has 12 states. [2020-12-01 15:26:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:26:37,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2020-12-01 15:26:37,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 2 letters. Loop has 5 letters. [2020-12-01 15:26:37,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:37,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 7 letters. Loop has 5 letters. [2020-12-01 15:26:37,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:37,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 2 letters. Loop has 10 letters. [2020-12-01 15:26:37,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:37,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 72 transitions. [2020-12-01 15:26:37,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-12-01 15:26:37,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 28 states and 43 transitions. [2020-12-01 15:26:37,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-12-01 15:26:37,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-12-01 15:26:37,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 43 transitions. [2020-12-01 15:26:37,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:37,541 INFO L692 BuchiCegarLoop]: Abstraction has 28 states and 43 transitions. [2020-12-01 15:26:37,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 43 transitions. [2020-12-01 15:26:37,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2020-12-01 15:26:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:26:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 30 transitions. [2020-12-01 15:26:37,576 INFO L715 BuchiCegarLoop]: Abstraction has 20 states and 30 transitions. [2020-12-01 15:26:37,576 INFO L595 BuchiCegarLoop]: Abstraction has 20 states and 30 transitions. [2020-12-01 15:26:37,576 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:26:37,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 30 transitions. [2020-12-01 15:26:37,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-12-01 15:26:37,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:37,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:37,578 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 15:26:37,579 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:37,579 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 172#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 173#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 184#L550-1 [2020-12-01 15:26:37,579 INFO L796 eck$LassoCheckResult]: Loop: 184#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 174#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 175#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 179#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 180#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 184#L550-1 [2020-12-01 15:26:37,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:37,580 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-12-01 15:26:37,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:37,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931921731] [2020-12-01 15:26:37,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:37,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:37,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:37,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:37,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:37,616 INFO L82 PathProgramCache]: Analyzing trace with hash 38421593, now seen corresponding path program 1 times [2020-12-01 15:26:37,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:37,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920865338] [2020-12-01 15:26:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:37,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:37,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:37,656 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:37,657 INFO L82 PathProgramCache]: Analyzing trace with hash 177749398, now seen corresponding path program 1 times [2020-12-01 15:26:37,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:37,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346404943] [2020-12-01 15:26:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:37,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:37,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:37,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:37,914 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-12-01 15:26:38,179 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-12-01 15:26:38,304 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:38,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:38,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:38,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:38,313 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:38,313 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:38,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:38,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:38,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration2_Lasso [2020-12-01 15:26:38,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:38,314 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:38,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:38,880 WARN L197 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-01 15:26:39,048 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-01 15:26:39,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:39,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:39,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:39,624 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:39,624 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:39,641 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 [2020-12-01 15:26:39,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:39,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:39,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:39,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:39,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:39,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:39,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:39,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:39,689 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 [2020-12-01 15:26:39,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:39,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:39,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:39,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:39,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:39,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:39,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:39,720 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 [2020-12-01 15:26:39,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:39,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:39,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:39,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:39,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:39,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:39,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:39,802 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 [2020-12-01 15:26:39,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:39,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:39,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:39,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:39,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:39,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:39,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:39,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:39,837 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 [2020-12-01 15:26:39,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:39,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:39,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:39,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:39,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:39,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:39,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:39,912 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 [2020-12-01 15:26:39,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:39,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:39,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:39,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:39,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:39,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:39,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:39,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:39,998 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 [2020-12-01 15:26:40,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,050 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 [2020-12-01 15:26:40,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,082 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 [2020-12-01 15:26:40,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:40,130 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 [2020-12-01 15:26:40,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,171 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 [2020-12-01 15:26:40,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,211 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 [2020-12-01 15:26:40,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:40,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:40,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,248 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 [2020-12-01 15:26:40,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,279 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 [2020-12-01 15:26:40,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:40,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:40,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:40,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:40,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:40,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:40,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:40,301 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:40,305 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:26:40,306 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:40,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:26:40,365 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:26:40,366 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:40,366 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_2 Supporting invariants [] [2020-12-01 15:26:40,457 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:40,459 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:40,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:40,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:40,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:26:40,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:40,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:40,645 INFO L382 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 0 case distinctions, treesize of input 32 treesize of output 16 [2020-12-01 15:26:40,649 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:40,656 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:40,657 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:40,659 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:19 [2020-12-01 15:26:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:40,680 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:26:40,680 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 30 transitions. cyclomatic complexity: 13 Second operand 5 states. [2020-12-01 15:26:40,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 30 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 43 states and 66 transitions. Complement of second has 9 states. [2020-12-01 15:26:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:26:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-12-01 15:26:40,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 5 letters. [2020-12-01 15:26:40,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:40,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 8 letters. Loop has 5 letters. [2020-12-01 15:26:40,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:40,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 3 letters. Loop has 10 letters. [2020-12-01 15:26:40,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:40,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 66 transitions. [2020-12-01 15:26:40,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-12-01 15:26:40,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 41 states and 64 transitions. [2020-12-01 15:26:40,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-12-01 15:26:40,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 15:26:40,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 64 transitions. [2020-12-01 15:26:40,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:40,786 INFO L692 BuchiCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-12-01 15:26:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 64 transitions. [2020-12-01 15:26:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-12-01 15:26:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-01 15:26:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 61 transitions. [2020-12-01 15:26:40,791 INFO L715 BuchiCegarLoop]: Abstraction has 39 states and 61 transitions. [2020-12-01 15:26:40,792 INFO L595 BuchiCegarLoop]: Abstraction has 39 states and 61 transitions. [2020-12-01 15:26:40,792 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:26:40,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 61 transitions. [2020-12-01 15:26:40,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-12-01 15:26:40,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:40,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:40,794 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:26:40,794 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:40,799 INFO L794 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 332#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 333#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 357#L550-1 assume !main_#t~short6; 353#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 347#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 348#L559 [2020-12-01 15:26:40,799 INFO L796 eck$LassoCheckResult]: Loop: 348#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 343#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 344#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 350#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 351#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 348#L559 [2020-12-01 15:26:40,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:40,801 INFO L82 PathProgramCache]: Analyzing trace with hash 889571379, now seen corresponding path program 1 times [2020-12-01 15:26:40,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:40,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363184593] [2020-12-01 15:26:40,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:40,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363184593] [2020-12-01 15:26:40,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:26:40,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:26:40,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121364514] [2020-12-01 15:26:40,907 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:26:40,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:40,908 INFO L82 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 1 times [2020-12-01 15:26:40,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:40,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863073709] [2020-12-01 15:26:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:40,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:40,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:40,946 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:41,093 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-01 15:26:41,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:26:41,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:26:41,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:26:41,144 INFO L87 Difference]: Start difference. First operand 39 states and 61 transitions. cyclomatic complexity: 27 Second operand 3 states. [2020-12-01 15:26:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:26:41,165 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2020-12-01 15:26:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:26:41,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 61 transitions. [2020-12-01 15:26:41,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-12-01 15:26:41,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 39 states and 50 transitions. [2020-12-01 15:26:41,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-12-01 15:26:41,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-12-01 15:26:41,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2020-12-01 15:26:41,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:41,181 INFO L692 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-12-01 15:26:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2020-12-01 15:26:41,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-01 15:26:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-01 15:26:41,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-12-01 15:26:41,195 INFO L715 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-12-01 15:26:41,195 INFO L595 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-12-01 15:26:41,195 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:26:41,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2020-12-01 15:26:41,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-12-01 15:26:41,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:41,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:41,201 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:26:41,204 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:41,205 INFO L794 eck$LassoCheckResult]: Stem: 429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 423#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 424#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 434#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 447#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 438#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 439#L559 [2020-12-01 15:26:41,205 INFO L796 eck$LassoCheckResult]: Loop: 439#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 445#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 450#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 425#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 426#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 439#L559 [2020-12-01 15:26:41,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:41,206 INFO L82 PathProgramCache]: Analyzing trace with hash 889569457, now seen corresponding path program 1 times [2020-12-01 15:26:41,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:41,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074389814] [2020-12-01 15:26:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:41,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:41,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:41,256 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:41,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:41,264 INFO L82 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 2 times [2020-12-01 15:26:41,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:41,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668925380] [2020-12-01 15:26:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:41,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:41,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:41,298 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:41,299 INFO L82 PathProgramCache]: Analyzing trace with hash -127775619, now seen corresponding path program 1 times [2020-12-01 15:26:41,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:41,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520395562] [2020-12-01 15:26:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:41,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:41,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:41,333 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:41,475 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-01 15:26:41,857 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-12-01 15:26:41,957 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:41,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:41,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:41,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:41,958 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:41,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:41,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:41,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:41,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration4_Lasso [2020-12-01 15:26:41,959 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:41,959 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:41,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:41,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,209 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-01 15:26:42,316 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-01 15:26:42,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:42,893 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:42,893 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:42,900 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 [2020-12-01 15:26:42,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:42,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:42,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:42,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:42,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:42,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:42,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:42,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:42,929 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 [2020-12-01 15:26:42,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:42,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:42,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:42,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:42,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:42,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:42,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:43,007 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 [2020-12-01 15:26:43,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:43,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:43,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:43,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,046 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 [2020-12-01 15:26:43,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:43,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,079 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 [2020-12-01 15:26:43,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:43,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:43,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:43,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,127 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 [2020-12-01 15:26:43,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:43,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:43,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:43,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,175 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 [2020-12-01 15:26:43,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:43,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:43,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:43,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:43,209 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 [2020-12-01 15:26:43,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,215 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:43,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:43,261 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 [2020-12-01 15:26:43,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:43,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:43,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:43,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,295 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 [2020-12-01 15:26:43,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:43,322 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:43,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:43,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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 [2020-12-01 15:26:43,403 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 [2020-12-01 15:26:43,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:43,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:43,500 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 [2020-12-01 15:26:43,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:43,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:43,581 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 [2020-12-01 15:26:43,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:43,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:43,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:43,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:43,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:43,587 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 [2020-12-01 15:26:43,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:43,625 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-12-01 15:26:43,626 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:43,634 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:43,661 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:26:43,661 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:43,661 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)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3 Supporting invariants [] [2020-12-01 15:26:43,742 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:43,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:43,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:43,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:43,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:26:43,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:43,834 INFO L382 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 0 case distinctions, treesize of input 27 treesize of output 15 [2020-12-01 15:26:43,838 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:43,841 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:43,842 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:43,842 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:9 [2020-12-01 15:26:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:43,874 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 [2020-12-01 15:26:43,874 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16 Second operand 4 states. [2020-12-01 15:26:43,974 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 65 states and 85 transitions. Complement of second has 9 states. [2020-12-01 15:26:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:43,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:26:43,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-12-01 15:26:43,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 6 letters. Loop has 5 letters. [2020-12-01 15:26:43,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:43,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 11 letters. Loop has 5 letters. [2020-12-01 15:26:43,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:43,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 6 letters. Loop has 10 letters. [2020-12-01 15:26:43,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:43,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 85 transitions. [2020-12-01 15:26:43,995 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2020-12-01 15:26:43,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 64 states and 84 transitions. [2020-12-01 15:26:43,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-12-01 15:26:43,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2020-12-01 15:26:43,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 84 transitions. [2020-12-01 15:26:44,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:44,000 INFO L692 BuchiCegarLoop]: Abstraction has 64 states and 84 transitions. [2020-12-01 15:26:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 84 transitions. [2020-12-01 15:26:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2020-12-01 15:26:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-01 15:26:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2020-12-01 15:26:44,006 INFO L715 BuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2020-12-01 15:26:44,006 INFO L595 BuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2020-12-01 15:26:44,006 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:26:44,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 80 transitions. [2020-12-01 15:26:44,007 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2020-12-01 15:26:44,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:44,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:44,008 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:26:44,008 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2020-12-01 15:26:44,008 INFO L794 eck$LassoCheckResult]: Stem: 634#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 632#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 633#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 643#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 671#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 664#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 660#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 661#L559-2 [2020-12-01 15:26:44,008 INFO L796 eck$LassoCheckResult]: Loop: 661#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 672#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 635#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 636#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 647#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 676#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 648#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 649#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 666#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 667#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 661#L559-2 [2020-12-01 15:26:44,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:44,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 2 times [2020-12-01 15:26:44,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:44,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78854226] [2020-12-01 15:26:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:44,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:44,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:44,061 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:44,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:44,064 INFO L82 PathProgramCache]: Analyzing trace with hash -552559553, now seen corresponding path program 1 times [2020-12-01 15:26:44,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:44,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438812269] [2020-12-01 15:26:44,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:44,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438812269] [2020-12-01 15:26:44,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312030153] [2020-12-01 15:26:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:26:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:44,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:26:44,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:44,477 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:44,477 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 58 [2020-12-01 15:26:44,484 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:26:44,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:44,497 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:44,537 INFO L625 ElimStorePlain]: treesize reduction 53, result has 31.2 percent of original size [2020-12-01 15:26:44,538 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:26:44,539 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:24 [2020-12-01 15:26:44,633 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:44,639 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:44,646 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:44,651 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:44,703 INFO L382 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 [2020-12-01 15:26:44,706 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:44,709 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:44,709 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:44,710 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-12-01 15:26:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:44,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:26:44,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-12-01 15:26:44,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647240063] [2020-12-01 15:26:44,723 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:26:44,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:26:44,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-01 15:26:44,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:26:44,725 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. cyclomatic complexity: 26 Second operand 11 states. [2020-12-01 15:26:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:26:44,867 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2020-12-01 15:26:44,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:26:44,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 92 transitions. [2020-12-01 15:26:44,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-12-01 15:26:44,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 62 states and 76 transitions. [2020-12-01 15:26:44,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2020-12-01 15:26:44,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2020-12-01 15:26:44,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 76 transitions. [2020-12-01 15:26:44,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:44,877 INFO L692 BuchiCegarLoop]: Abstraction has 62 states and 76 transitions. [2020-12-01 15:26:44,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 76 transitions. [2020-12-01 15:26:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2020-12-01 15:26:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-01 15:26:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2020-12-01 15:26:44,894 INFO L715 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2020-12-01 15:26:44,894 INFO L595 BuchiCegarLoop]: Abstraction has 46 states and 59 transitions. [2020-12-01 15:26:44,894 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-12-01 15:26:44,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 59 transitions. [2020-12-01 15:26:44,895 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-12-01 15:26:44,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:44,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:44,896 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:26:44,896 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:44,897 INFO L794 eck$LassoCheckResult]: Stem: 819#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 813#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 814#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 849#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 846#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 839#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 837#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 824#L559-2 [2020-12-01 15:26:44,897 INFO L796 eck$LassoCheckResult]: Loop: 824#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 825#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 815#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 816#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 828#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 824#L559-2 [2020-12-01 15:26:44,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:44,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 3 times [2020-12-01 15:26:44,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:44,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533764398] [2020-12-01 15:26:44,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:44,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:44,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:44,927 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:44,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:44,930 INFO L82 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 2 times [2020-12-01 15:26:44,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:44,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534540663] [2020-12-01 15:26:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:44,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:44,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:44,941 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:44,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:44,942 INFO L82 PathProgramCache]: Analyzing trace with hash 333922885, now seen corresponding path program 1 times [2020-12-01 15:26:44,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:44,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880804891] [2020-12-01 15:26:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:45,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880804891] [2020-12-01 15:26:45,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874155245] [2020-12-01 15:26:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:26:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:45,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:26:45,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:45,136 INFO L382 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 0 case distinctions, treesize of input 33 treesize of output 17 [2020-12-01 15:26:45,138 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:45,143 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:45,145 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:45,146 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:16 [2020-12-01 15:26:45,173 INFO L382 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 23 treesize of output 11 [2020-12-01 15:26:45,177 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:45,179 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:45,180 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:45,181 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2020-12-01 15:26:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:45,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:26:45,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-12-01 15:26:45,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121176472] [2020-12-01 15:26:45,346 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-12-01 15:26:45,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:26:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:26:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:26:45,377 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. cyclomatic complexity: 18 Second operand 10 states. [2020-12-01 15:26:45,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:26:45,505 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2020-12-01 15:26:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:26:45,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 66 transitions. [2020-12-01 15:26:45,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-12-01 15:26:45,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 50 states and 61 transitions. [2020-12-01 15:26:45,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-12-01 15:26:45,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-12-01 15:26:45,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 61 transitions. [2020-12-01 15:26:45,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:45,514 INFO L692 BuchiCegarLoop]: Abstraction has 50 states and 61 transitions. [2020-12-01 15:26:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 61 transitions. [2020-12-01 15:26:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-01 15:26:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-01 15:26:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2020-12-01 15:26:45,526 INFO L715 BuchiCegarLoop]: Abstraction has 50 states and 61 transitions. [2020-12-01 15:26:45,526 INFO L595 BuchiCegarLoop]: Abstraction has 50 states and 61 transitions. [2020-12-01 15:26:45,526 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-12-01 15:26:45,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 61 transitions. [2020-12-01 15:26:45,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-12-01 15:26:45,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:45,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:45,530 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:26:45,530 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:45,531 INFO L794 eck$LassoCheckResult]: Stem: 967#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 965#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 966#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 983#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 984#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 980#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 981#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 988#L559-2 [2020-12-01 15:26:45,531 INFO L796 eck$LassoCheckResult]: Loop: 988#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1001#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 998#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 995#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 994#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 988#L559-2 [2020-12-01 15:26:45,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:45,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1806849425, now seen corresponding path program 1 times [2020-12-01 15:26:45,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:45,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370285807] [2020-12-01 15:26:45,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:45,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:45,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:45,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:45,572 INFO L82 PathProgramCache]: Analyzing trace with hash 35409681, now seen corresponding path program 2 times [2020-12-01 15:26:45,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:45,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508920954] [2020-12-01 15:26:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:45,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:45,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:45,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:45,603 INFO L82 PathProgramCache]: Analyzing trace with hash 391181185, now seen corresponding path program 1 times [2020-12-01 15:26:45,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:45,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144289683] [2020-12-01 15:26:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:45,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:45,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:45,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:45,740 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-12-01 15:26:45,977 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2020-12-01 15:26:46,044 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:46,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:46,045 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:46,045 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:46,045 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:46,045 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:46,045 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:46,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:46,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration7_Lasso [2020-12-01 15:26:46,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:46,046 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:46,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,212 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-01 15:26:46,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:46,624 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:46,624 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/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) [2020-12-01 15:26:46,630 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 [2020-12-01 15:26:46,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:46,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:46,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:46,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:46,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:46,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:46,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:46,672 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-12-01 15:26:46,672 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_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:46,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:46,696 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:26:46,696 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:46,696 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)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_4 Supporting invariants [] [2020-12-01 15:26:46,758 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:46,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:46,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:46,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:26:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:46,836 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:46,867 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:46,868 INFO L382 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 15 treesize of output 15 [2020-12-01 15:26:46,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:46,873 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:46,876 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-01 15:26:46,883 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:46,884 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:46,884 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:10 [2020-12-01 15:26:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:46,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:26:46,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:46,980 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2020-12-01 15:26:46,980 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 61 transitions. cyclomatic complexity: 16 Second operand 9 states. [2020-12-01 15:26:47,212 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 61 transitions. cyclomatic complexity: 16. Second operand 9 states. Result 70 states and 86 transitions. Complement of second has 13 states. [2020-12-01 15:26:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 4 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:47,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:26:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 23 transitions. [2020-12-01 15:26:47,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 7 letters. Loop has 5 letters. [2020-12-01 15:26:47,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:47,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 12 letters. Loop has 5 letters. [2020-12-01 15:26:47,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:47,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 23 transitions. Stem has 7 letters. Loop has 10 letters. [2020-12-01 15:26:47,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:47,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 86 transitions. [2020-12-01 15:26:47,216 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2020-12-01 15:26:47,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 69 states and 85 transitions. [2020-12-01 15:26:47,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:26:47,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-12-01 15:26:47,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 85 transitions. [2020-12-01 15:26:47,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:47,218 INFO L692 BuchiCegarLoop]: Abstraction has 69 states and 85 transitions. [2020-12-01 15:26:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 85 transitions. [2020-12-01 15:26:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2020-12-01 15:26:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-01 15:26:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2020-12-01 15:26:47,226 INFO L715 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-12-01 15:26:47,226 INFO L595 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-12-01 15:26:47,226 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-12-01 15:26:47,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 75 transitions. [2020-12-01 15:26:47,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-12-01 15:26:47,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:47,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:47,228 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2020-12-01 15:26:47,228 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:47,228 INFO L794 eck$LassoCheckResult]: Stem: 1217#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1211#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 1212#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1244#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1242#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1239#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 1238#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 1234#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1258#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1264#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1241#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 1218#L552 [2020-12-01 15:26:47,228 INFO L796 eck$LassoCheckResult]: Loop: 1218#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 1219#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1222#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1213#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1214#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 1218#L552 [2020-12-01 15:26:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:47,228 INFO L82 PathProgramCache]: Analyzing trace with hash -125928585, now seen corresponding path program 1 times [2020-12-01 15:26:47,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:47,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378288817] [2020-12-01 15:26:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:47,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:47,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:47,277 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash 52859423, now seen corresponding path program 3 times [2020-12-01 15:26:47,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:47,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870021038] [2020-12-01 15:26:47,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:47,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:47,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:47,294 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:47,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:47,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1457049705, now seen corresponding path program 1 times [2020-12-01 15:26:47,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:47,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384396700] [2020-12-01 15:26:47,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:47,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:47,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:47,342 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:47,739 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 89 [2020-12-01 15:26:47,818 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:47,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:47,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:47,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:47,818 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:47,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:47,818 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:47,818 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:47,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration8_Lasso [2020-12-01 15:26:47,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:47,818 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:47,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:47,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,027 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-12-01 15:26:48,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:48,429 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:48,430 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:48,449 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 [2020-12-01 15:26:48,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:48,496 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 [2020-12-01 15:26:48,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:48,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,539 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 [2020-12-01 15:26:48,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:48,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:48,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,583 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 [2020-12-01 15:26:48,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:48,587 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:48,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,640 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 [2020-12-01 15:26:48,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,688 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 [2020-12-01 15:26:48,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,732 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 [2020-12-01 15:26:48,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,763 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 [2020-12-01 15:26:48,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,807 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 [2020-12-01 15:26:48,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,837 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 [2020-12-01 15:26:48,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,866 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 [2020-12-01 15:26:48,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:48,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:48,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:48,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:48,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:48,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:48,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:48,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:48,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:48,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:48,980 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 [2020-12-01 15:26:48,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:48,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:48,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:48,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:48,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:48,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:49,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:49,027 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-12-01 15:26:49,027 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_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:49,036 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:49,052 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:26:49,053 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:49,053 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_5) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_5 Supporting invariants [] [2020-12-01 15:26:49,145 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:49,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:49,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:49,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:49,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:49,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:26:49,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:49,278 INFO L382 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 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-01 15:26:49,282 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:49,285 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:49,286 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:49,286 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2020-12-01 15:26:49,305 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:49,352 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:26:49,352 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21 Second operand 5 states. [2020-12-01 15:26:49,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 75 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 128 states and 157 transitions. Complement of second has 9 states. [2020-12-01 15:26:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:26:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-12-01 15:26:49,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2020-12-01 15:26:49,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:49,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 16 letters. Loop has 5 letters. [2020-12-01 15:26:49,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:49,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 10 letters. [2020-12-01 15:26:49,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:49,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 157 transitions. [2020-12-01 15:26:49,413 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 28 [2020-12-01 15:26:49,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 103 states and 127 transitions. [2020-12-01 15:26:49,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2020-12-01 15:26:49,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2020-12-01 15:26:49,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 127 transitions. [2020-12-01 15:26:49,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:49,416 INFO L692 BuchiCegarLoop]: Abstraction has 103 states and 127 transitions. [2020-12-01 15:26:49,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 127 transitions. [2020-12-01 15:26:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2020-12-01 15:26:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-01 15:26:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2020-12-01 15:26:49,422 INFO L715 BuchiCegarLoop]: Abstraction has 93 states and 117 transitions. [2020-12-01 15:26:49,422 INFO L595 BuchiCegarLoop]: Abstraction has 93 states and 117 transitions. [2020-12-01 15:26:49,422 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-12-01 15:26:49,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 117 transitions. [2020-12-01 15:26:49,423 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 28 [2020-12-01 15:26:49,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:49,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:49,425 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:26:49,425 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:49,425 INFO L794 eck$LassoCheckResult]: Stem: 1522#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1520#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 1521#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1531#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1523#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1524#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 1535#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 1586#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1577#L550-1 [2020-12-01 15:26:49,425 INFO L796 eck$LassoCheckResult]: Loop: 1577#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 1568#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 1565#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 1558#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 1562#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 1577#L550-1 [2020-12-01 15:26:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:49,426 INFO L82 PathProgramCache]: Analyzing trace with hash 177757334, now seen corresponding path program 2 times [2020-12-01 15:26:49,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:49,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623957132] [2020-12-01 15:26:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:49,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:49,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:49,453 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:49,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:49,454 INFO L82 PathProgramCache]: Analyzing trace with hash 38429467, now seen corresponding path program 3 times [2020-12-01 15:26:49,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:49,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274593730] [2020-12-01 15:26:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:49,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:49,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:49,469 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:49,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:49,470 INFO L82 PathProgramCache]: Analyzing trace with hash -758277210, now seen corresponding path program 1 times [2020-12-01 15:26:49,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:49,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701441130] [2020-12-01 15:26:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:49,482 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:49,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:49,497 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:49,650 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-01 15:26:50,052 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2020-12-01 15:26:50,304 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-01 15:26:50,309 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:50,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:50,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:50,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:50,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:50,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:50,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:50,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:50,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration9_Lasso [2020-12-01 15:26:50,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:50,310 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:50,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2020-12-01 15:26:50,805 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-12-01 15:26:50,930 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-01 15:26:50,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:50,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:51,503 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-12-01 15:26:51,674 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:51,674 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:51,681 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 [2020-12-01 15:26:51,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:51,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:51,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:51,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:51,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:51,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:51,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:51,721 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 [2020-12-01 15:26:51,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:51,723 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2020-12-01 15:26:51,723 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2020-12-01 15:26:51,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:51,759 INFO L401 nArgumentSynthesizer]: We have 42 Motzkin's Theorem applications. [2020-12-01 15:26:51,759 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-12-01 15:26:51,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:51,878 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-12-01 15:26:51,879 INFO L444 ModelExtractionUtils]: 7 out of 29 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:51,881 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:51,889 INFO L438 nArgumentSynthesizer]: Removed 6 redundant supporting invariants from a total of 6. [2020-12-01 15:26:51,890 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:51,890 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)_6) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_6 + 1 Supporting invariants [] [2020-12-01 15:26:51,958 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:51,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:51,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:52,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:52,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:52,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:26:52,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:52,082 INFO L382 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 0 case distinctions, treesize of input 36 treesize of output 20 [2020-12-01 15:26:52,087 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:52,096 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:52,097 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:52,098 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-12-01 15:26:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:52,117 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:26:52,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 93 states and 117 transitions. cyclomatic complexity: 34 Second operand 6 states. [2020-12-01 15:26:52,168 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 93 states and 117 transitions. cyclomatic complexity: 34. Second operand 6 states. Result 112 states and 136 transitions. Complement of second has 9 states. [2020-12-01 15:26:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-12-01 15:26:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-12-01 15:26:52,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 5 letters. [2020-12-01 15:26:52,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:52,170 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:26:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:52,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:52,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:52,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:26:52,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:52,305 INFO L382 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 0 case distinctions, treesize of input 36 treesize of output 20 [2020-12-01 15:26:52,308 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:52,315 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:52,316 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:52,316 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-12-01 15:26:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:52,333 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:26:52,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 93 states and 117 transitions. cyclomatic complexity: 34 Second operand 6 states. [2020-12-01 15:26:52,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 93 states and 117 transitions. cyclomatic complexity: 34. Second operand 6 states. Result 112 states and 137 transitions. Complement of second has 11 states. [2020-12-01 15:26:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-12-01 15:26:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-12-01 15:26:52,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. Stem has 8 letters. Loop has 5 letters. [2020-12-01 15:26:52,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:52,402 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:26:52,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:52,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:52,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:52,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:26:52,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:52,515 INFO L382 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 0 case distinctions, treesize of input 36 treesize of output 20 [2020-12-01 15:26:52,517 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:52,522 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:52,523 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:26:52,523 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-12-01 15:26:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:52,538 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:26:52,539 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 93 states and 117 transitions. cyclomatic complexity: 34 Second operand 6 states. [2020-12-01 15:26:52,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 93 states and 117 transitions. cyclomatic complexity: 34. Second operand 6 states. Result 153 states and 186 transitions. Complement of second has 10 states. [2020-12-01 15:26:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-12-01 15:26:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-12-01 15:26:52,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 5 letters. [2020-12-01 15:26:52,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:52,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 13 letters. Loop has 5 letters. [2020-12-01 15:26:52,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:52,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 10 letters. [2020-12-01 15:26:52,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:52,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 186 transitions. [2020-12-01 15:26:52,590 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2020-12-01 15:26:52,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 123 states and 151 transitions. [2020-12-01 15:26:52,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:26:52,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-12-01 15:26:52,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 151 transitions. [2020-12-01 15:26:52,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:52,593 INFO L692 BuchiCegarLoop]: Abstraction has 123 states and 151 transitions. [2020-12-01 15:26:52,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 151 transitions. [2020-12-01 15:26:52,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2020-12-01 15:26:52,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-01 15:26:52,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 134 transitions. [2020-12-01 15:26:52,599 INFO L715 BuchiCegarLoop]: Abstraction has 106 states and 134 transitions. [2020-12-01 15:26:52,599 INFO L595 BuchiCegarLoop]: Abstraction has 106 states and 134 transitions. [2020-12-01 15:26:52,599 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-12-01 15:26:52,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 134 transitions. [2020-12-01 15:26:52,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2020-12-01 15:26:52,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:52,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:52,601 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-01 15:26:52,601 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1] [2020-12-01 15:26:52,602 INFO L794 eck$LassoCheckResult]: Stem: 2218#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2212#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 2213#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2274#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2266#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2265#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 2263#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 2259#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2261#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2255#L550-3 [2020-12-01 15:26:52,602 INFO L796 eck$LassoCheckResult]: Loop: 2255#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2254#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 2249#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 2253#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2251#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2252#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2264#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 2262#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 2257#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2256#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2255#L550-3 [2020-12-01 15:26:52,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:52,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1215510068, now seen corresponding path program 3 times [2020-12-01 15:26:52,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:52,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468953099] [2020-12-01 15:26:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:52,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:52,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:52,624 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:52,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:52,625 INFO L82 PathProgramCache]: Analyzing trace with hash -568421505, now seen corresponding path program 1 times [2020-12-01 15:26:52,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:52,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306547139] [2020-12-01 15:26:52,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:52,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:52,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:52,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:52,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1511384562, now seen corresponding path program 2 times [2020-12-01 15:26:52,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:52,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786672370] [2020-12-01 15:26:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:52,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:52,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:52,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:53,002 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2020-12-01 15:26:53,133 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-01 15:26:53,528 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 94 [2020-12-01 15:26:54,136 WARN L197 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-12-01 15:26:54,141 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:54,141 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:54,141 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:54,141 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:54,141 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:54,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:54,142 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:54,142 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:54,142 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration10_Lasso [2020-12-01 15:26:54,142 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:54,143 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:54,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,286 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2020-12-01 15:26:54,750 WARN L197 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-12-01 15:26:54,876 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-01 15:26:54,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:54,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:55,062 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-01 15:26:55,517 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2020-12-01 15:26:55,654 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:55,654 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,659 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 [2020-12-01 15:26:55,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:55,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:55,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,692 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 [2020-12-01 15:26:55,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:55,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:55,699 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,726 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 [2020-12-01 15:26:55,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:55,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:55,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,774 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 [2020-12-01 15:26:55,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:55,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:55,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,808 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 [2020-12-01 15:26:55,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:55,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:55,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:55,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,838 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 [2020-12-01 15:26:55,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:55,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:55,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:55,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,867 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 [2020-12-01 15:26:55,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:55,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:55,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:55,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,898 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 [2020-12-01 15:26:55,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:55,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:55,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:55,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,930 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 [2020-12-01 15:26:55,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:55,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:55,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:55,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:55,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:55,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:55,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:55,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:55,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:55,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:55,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:55,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:56,005 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 [2020-12-01 15:26:56,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:56,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:56,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:56,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:56,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:56,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:56,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:56,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:56,034 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 [2020-12-01 15:26:56,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:56,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:56,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:56,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:56,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:56,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:56,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:56,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:56,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:56,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:56,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:56,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:56,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:56,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:56,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:56,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:56,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:56,092 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 [2020-12-01 15:26:56,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:56,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:56,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:56,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:56,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:56,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:56,135 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:56,178 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 [2020-12-01 15:26:56,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:56,180 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-12-01 15:26:56,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:56,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:56,197 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-12-01 15:26:56,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:56,220 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:56,233 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-12-01 15:26:56,233 INFO L444 ModelExtractionUtils]: 17 out of 22 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:56,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:26:56,237 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:26:56,238 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:56,238 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_7) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_7 Supporting invariants [] [2020-12-01 15:26:56,333 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:26:56,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:26:56,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:56,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:56,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:56,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:26:56,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:56,420 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:56,420 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:26:56,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:56,425 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:56,451 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:26:56,452 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:26:56,453 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:26:56,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:56,590 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:56,590 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 66 [2020-12-01 15:26:56,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:26:56,595 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:26:56,599 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:56,626 INFO L625 ElimStorePlain]: treesize reduction 33, result has 50.0 percent of original size [2020-12-01 15:26:56,627 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:56,630 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-01 15:26:56,630 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:33 [2020-12-01 15:26:56,631 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:56,663 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:56,707 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:26:56,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 134 transitions. cyclomatic complexity: 38 Second operand 8 states. [2020-12-01 15:26:56,909 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 134 transitions. cyclomatic complexity: 38. Second operand 8 states. Result 192 states and 233 transitions. Complement of second has 17 states. [2020-12-01 15:26:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:26:56,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 21 transitions. [2020-12-01 15:26:56,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 21 transitions. Stem has 9 letters. Loop has 10 letters. [2020-12-01 15:26:56,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:56,911 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:26:56,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:56,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:56,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:56,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:26:56,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:57,015 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:57,015 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:26:57,017 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:57,020 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:57,049 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:26:57,051 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:26:57,052 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:26:57,080 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:57,215 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:26:57,216 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 66 [2020-12-01 15:26:57,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:26:57,220 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:26:57,225 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:26:57,252 INFO L625 ElimStorePlain]: treesize reduction 33, result has 50.0 percent of original size [2020-12-01 15:26:57,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:57,256 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-01 15:26:57,256 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:33 [2020-12-01 15:26:57,258 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:57,294 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:26:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:57,323 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:26:57,323 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 134 transitions. cyclomatic complexity: 38 Second operand 8 states. [2020-12-01 15:26:57,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 134 transitions. cyclomatic complexity: 38. Second operand 8 states. Result 235 states and 284 transitions. Complement of second has 21 states. [2020-12-01 15:26:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2020-12-01 15:26:57,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:26:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 25 transitions. [2020-12-01 15:26:57,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 9 letters. Loop has 10 letters. [2020-12-01 15:26:57,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:57,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 19 letters. Loop has 10 letters. [2020-12-01 15:26:57,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:57,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 9 letters. Loop has 20 letters. [2020-12-01 15:26:57,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:57,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 235 states and 284 transitions. [2020-12-01 15:26:57,673 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2020-12-01 15:26:57,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 235 states to 186 states and 229 transitions. [2020-12-01 15:26:57,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2020-12-01 15:26:57,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2020-12-01 15:26:57,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 229 transitions. [2020-12-01 15:26:57,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:57,677 INFO L692 BuchiCegarLoop]: Abstraction has 186 states and 229 transitions. [2020-12-01 15:26:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 229 transitions. [2020-12-01 15:26:57,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 129. [2020-12-01 15:26:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-12-01 15:26:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2020-12-01 15:26:57,682 INFO L715 BuchiCegarLoop]: Abstraction has 129 states and 163 transitions. [2020-12-01 15:26:57,683 INFO L595 BuchiCegarLoop]: Abstraction has 129 states and 163 transitions. [2020-12-01 15:26:57,683 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-12-01 15:26:57,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 163 transitions. [2020-12-01 15:26:57,684 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2020-12-01 15:26:57,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:57,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:57,685 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2020-12-01 15:26:57,685 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:26:57,686 INFO L794 eck$LassoCheckResult]: Stem: 2992#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2986#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 2987#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3069#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3088#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3103#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 3102#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 2997#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 2999#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 2988#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 2989#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 3023#L559 [2020-12-01 15:26:57,686 INFO L796 eck$LassoCheckResult]: Loop: 3023#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 3064#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3029#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3025#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3022#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 3023#L559 [2020-12-01 15:26:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:57,686 INFO L82 PathProgramCache]: Analyzing trace with hash -125928577, now seen corresponding path program 4 times [2020-12-01 15:26:57,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:57,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822719226] [2020-12-01 15:26:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:57,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:57,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:57,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:57,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:57,723 INFO L82 PathProgramCache]: Analyzing trace with hash 60247599, now seen corresponding path program 1 times [2020-12-01 15:26:57,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:57,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910914576] [2020-12-01 15:26:57,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:57,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:57,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:57,738 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:57,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:57,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1693471089, now seen corresponding path program 5 times [2020-12-01 15:26:57,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:57,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312051859] [2020-12-01 15:26:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:57,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:57,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:57,779 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:57,893 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-01 15:26:58,434 WARN L197 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 92 [2020-12-01 15:26:58,554 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:58,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:58,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:58,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:58,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:58,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:58,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:58,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:58,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration11_Lasso [2020-12-01 15:26:58,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:58,556 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:58,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,792 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-01 15:26:58,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:58,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:59,326 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:59,327 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:59,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,377 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 [2020-12-01 15:26:59,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,409 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 [2020-12-01 15:26:59,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,441 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 [2020-12-01 15:26:59,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:59,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,512 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 [2020-12-01 15:26:59,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,545 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 [2020-12-01 15:26:59,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,576 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 [2020-12-01 15:26:59,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,606 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 [2020-12-01 15:26:59,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,636 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 [2020-12-01 15:26:59,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,675 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 [2020-12-01 15:26:59,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:59,713 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 [2020-12-01 15:26:59,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,743 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 [2020-12-01 15:26:59,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:59,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:59,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:59,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,789 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 [2020-12-01 15:26:59,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,825 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 [2020-12-01 15:26:59,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,829 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,857 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 [2020-12-01 15:26:59,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,901 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 [2020-12-01 15:26:59,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,915 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:59,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,952 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,955 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:59,982 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 [2020-12-01 15:26:59,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:59,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:59,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:59,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:59,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:59,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:59,992 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:59,999 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-12-01 15:27:00,000 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_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:00,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:00,004 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:27:00,005 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:00,005 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_8) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_8 Supporting invariants [] [2020-12-01 15:27:00,059 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:27:00,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:27:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:00,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:00,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:00,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:27:00,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:00,156 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:00,157 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:27:00,164 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:00,169 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:00,192 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:27:00,193 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:00,194 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:27:00,235 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:00,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:00,296 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:27:00,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 163 transitions. cyclomatic complexity: 46 Second operand 5 states. [2020-12-01 15:27:00,465 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 163 transitions. cyclomatic complexity: 46. Second operand 5 states. Result 257 states and 311 transitions. Complement of second has 9 states. [2020-12-01 15:27:00,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:27:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-12-01 15:27:00,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 11 letters. Loop has 5 letters. [2020-12-01 15:27:00,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:00,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 5 letters. [2020-12-01 15:27:00,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:00,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 11 letters. Loop has 10 letters. [2020-12-01 15:27:00,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:00,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 311 transitions. [2020-12-01 15:27:00,475 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 56 [2020-12-01 15:27:00,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 214 states and 262 transitions. [2020-12-01 15:27:00,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2020-12-01 15:27:00,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2020-12-01 15:27:00,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 214 states and 262 transitions. [2020-12-01 15:27:00,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:00,481 INFO L692 BuchiCegarLoop]: Abstraction has 214 states and 262 transitions. [2020-12-01 15:27:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states and 262 transitions. [2020-12-01 15:27:00,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 143. [2020-12-01 15:27:00,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-12-01 15:27:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 182 transitions. [2020-12-01 15:27:00,488 INFO L715 BuchiCegarLoop]: Abstraction has 143 states and 182 transitions. [2020-12-01 15:27:00,488 INFO L595 BuchiCegarLoop]: Abstraction has 143 states and 182 transitions. [2020-12-01 15:27:00,488 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-12-01 15:27:00,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 182 transitions. [2020-12-01 15:27:00,489 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2020-12-01 15:27:00,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:00,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:00,489 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2020-12-01 15:27:00,489 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:27:00,490 INFO L794 eck$LassoCheckResult]: Stem: 3496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3494#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 3495#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3553#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3616#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3611#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 3603#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 3604#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3606#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3602#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3601#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 3501#L552 [2020-12-01 15:27:00,490 INFO L796 eck$LassoCheckResult]: Loop: 3501#L552 assume !(0 != main_#t~nondet8);havoc main_#t~nondet8;call main_#t~mem11 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem11 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem11; 3502#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 3505#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 3497#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 3498#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 3501#L552 [2020-12-01 15:27:00,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:00,491 INFO L82 PathProgramCache]: Analyzing trace with hash -364197003, now seen corresponding path program 2 times [2020-12-01 15:27:00,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:00,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212757671] [2020-12-01 15:27:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:00,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:00,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:00,527 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:00,528 INFO L82 PathProgramCache]: Analyzing trace with hash 52859423, now seen corresponding path program 4 times [2020-12-01 15:27:00,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:00,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569216142] [2020-12-01 15:27:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:00,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:00,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:00,539 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:00,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:00,540 INFO L82 PathProgramCache]: Analyzing trace with hash 617926443, now seen corresponding path program 1 times [2020-12-01 15:27:00,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:00,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836120014] [2020-12-01 15:27:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:00,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:00,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:00,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:00,689 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2020-12-01 15:27:01,181 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 90 [2020-12-01 15:27:01,312 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-01 15:27:01,315 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:01,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:01,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:01,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:01,315 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:01,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:01,316 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:01,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:01,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration12_Lasso [2020-12-01 15:27:01,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:01,316 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:01,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,528 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-12-01 15:27:01,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:01,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:02,002 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:02,003 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,008 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 [2020-12-01 15:27:02,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,039 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 [2020-12-01 15:27:02,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,072 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 [2020-12-01 15:27:02,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,104 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 [2020-12-01 15:27:02,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:02,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:02,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:02,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,136 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 [2020-12-01 15:27:02,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:02,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:02,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:02,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,165 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 [2020-12-01 15:27:02,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:02,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:02,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:02,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,195 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 [2020-12-01 15:27:02,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:02,280 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 [2020-12-01 15:27:02,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:02,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:02,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:02,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:02,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,375 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 [2020-12-01 15:27:02,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,409 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 [2020-12-01 15:27:02,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,414 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:02,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:02,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:02,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:02,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:02,450 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:02,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:02,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:02,467 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-12-01 15:27:02,467 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:02,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:02,472 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:27:02,472 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:02,472 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_9) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_9 Supporting invariants [] [2020-12-01 15:27:02,542 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:27:02,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:27:02,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:02,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:02,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:02,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:27:02,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:02,613 INFO L382 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 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-01 15:27:02,614 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:02,616 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:02,617 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:02,617 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2020-12-01 15:27:02,630 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:02,661 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:27:02,661 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 143 states and 182 transitions. cyclomatic complexity: 53 Second operand 5 states. [2020-12-01 15:27:02,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 143 states and 182 transitions. cyclomatic complexity: 53. Second operand 5 states. Result 168 states and 210 transitions. Complement of second has 9 states. [2020-12-01 15:27:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:02,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:27:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-12-01 15:27:02,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2020-12-01 15:27:02,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:02,718 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:02,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:02,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:02,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:27:02,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:02,872 INFO L382 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 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-01 15:27:02,873 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:02,876 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:02,876 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:02,876 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2020-12-01 15:27:02,891 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:02,937 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:27:02,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 143 states and 182 transitions. cyclomatic complexity: 53 Second operand 5 states. [2020-12-01 15:27:03,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 143 states and 182 transitions. cyclomatic complexity: 53. Second operand 5 states. Result 163 states and 204 transitions. Complement of second has 9 states. [2020-12-01 15:27:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:03,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:27:03,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2020-12-01 15:27:03,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2020-12-01 15:27:03,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:03,005 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:03,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:03,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:03,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:03,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:27:03,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:03,078 INFO L382 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 0 case distinctions, treesize of input 25 treesize of output 13 [2020-12-01 15:27:03,079 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:03,082 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:03,083 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:03,083 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2020-12-01 15:27:03,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:03,139 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-12-01 15:27:03,139 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 143 states and 182 transitions. cyclomatic complexity: 53 Second operand 5 states. [2020-12-01 15:27:03,193 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 143 states and 182 transitions. cyclomatic complexity: 53. Second operand 5 states. Result 203 states and 252 transitions. Complement of second has 8 states. [2020-12-01 15:27:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:27:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-12-01 15:27:03,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 11 letters. Loop has 5 letters. [2020-12-01 15:27:03,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:03,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 16 letters. Loop has 5 letters. [2020-12-01 15:27:03,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:03,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 11 letters. Loop has 10 letters. [2020-12-01 15:27:03,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:03,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 203 states and 252 transitions. [2020-12-01 15:27:03,201 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2020-12-01 15:27:03,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 203 states to 161 states and 200 transitions. [2020-12-01 15:27:03,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2020-12-01 15:27:03,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2020-12-01 15:27:03,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 161 states and 200 transitions. [2020-12-01 15:27:03,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:03,205 INFO L692 BuchiCegarLoop]: Abstraction has 161 states and 200 transitions. [2020-12-01 15:27:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states and 200 transitions. [2020-12-01 15:27:03,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 105. [2020-12-01 15:27:03,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-01 15:27:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2020-12-01 15:27:03,209 INFO L715 BuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2020-12-01 15:27:03,209 INFO L595 BuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2020-12-01 15:27:03,209 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-12-01 15:27:03,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2020-12-01 15:27:03,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2020-12-01 15:27:03,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:03,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:03,212 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1] [2020-12-01 15:27:03,212 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1] [2020-12-01 15:27:03,213 INFO L794 eck$LassoCheckResult]: Stem: 4421#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4415#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 4416#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 4467#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 4468#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4480#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 4474#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 4472#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 4471#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 4466#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4462#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 4435#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 4426#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 4428#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 4417#L550-3 [2020-12-01 15:27:03,213 INFO L796 eck$LassoCheckResult]: Loop: 4417#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4418#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 4450#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 4423#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 4449#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 4488#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4486#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 4483#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 4484#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 4434#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 4417#L550-3 [2020-12-01 15:27:03,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:03,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1222408472, now seen corresponding path program 3 times [2020-12-01 15:27:03,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:03,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284195731] [2020-12-01 15:27:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:03,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:03,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:03,265 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:03,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:03,266 INFO L82 PathProgramCache]: Analyzing trace with hash -568421505, now seen corresponding path program 2 times [2020-12-01 15:27:03,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:03,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966112698] [2020-12-01 15:27:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:03,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:03,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:03,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1433396646, now seen corresponding path program 4 times [2020-12-01 15:27:03,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:03,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286673360] [2020-12-01 15:27:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:03,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:03,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:03,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:03,668 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2020-12-01 15:27:04,369 WARN L197 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 116 [2020-12-01 15:27:05,155 WARN L197 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-12-01 15:27:05,165 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:05,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:05,165 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:05,165 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:05,165 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:05,166 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:05,166 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:05,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:05,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration13_Lasso [2020-12-01 15:27:05,166 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:05,166 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:05,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,282 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2020-12-01 15:27:05,761 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-12-01 15:27:05,937 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-01 15:27:05,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:05,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:06,241 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-01 15:27:06,344 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-12-01 15:27:06,845 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-01 15:27:06,887 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:06,887 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:06,890 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 [2020-12-01 15:27:06,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:06,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:06,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:06,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:06,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:06,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:06,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:06,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:06,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:06,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:06,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:06,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:06,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:06,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:06,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:06,955 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 [2020-12-01 15:27:06,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:06,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:06,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:06,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:06,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:06,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:06,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:06,959 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:06,985 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 [2020-12-01 15:27:06,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:06,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:06,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:06,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:06,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:06,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:06,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:06,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,015 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 [2020-12-01 15:27:07,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:07,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:07,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:07,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,045 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 [2020-12-01 15:27:07,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:07,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:07,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:07,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:07,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:07,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:07,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:07,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:07,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:07,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:07,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:07,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,169 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 [2020-12-01 15:27:07,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:07,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:07,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:07,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,198 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 [2020-12-01 15:27:07,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:07,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,276 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 [2020-12-01 15:27:07,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,340 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 [2020-12-01 15:27:07,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,406 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 [2020-12-01 15:27:07,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:07,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,507 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,552 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 [2020-12-01 15:27:07,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:07,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:07,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:07,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,615 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 [2020-12-01 15:27:07,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:07,618 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-12-01 15:27:07,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:07,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,635 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-12-01 15:27:07,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:07,663 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:07,685 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-12-01 15:27:07,685 INFO L444 ModelExtractionUtils]: 17 out of 22 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:07,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:07,716 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:27:07,716 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:07,716 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_10) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_10 Supporting invariants [] [2020-12-01 15:27:07,825 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:27:07,827 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:27:07,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:07,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:07,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:07,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:27:07,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:07,950 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:07,951 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:27:07,954 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:07,959 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:07,994 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:27:07,996 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:07,996 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:27:08,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,145 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:08,145 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 66 [2020-12-01 15:27:08,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:27:08,149 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:27:08,157 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:08,186 INFO L625 ElimStorePlain]: treesize reduction 33, result has 50.0 percent of original size [2020-12-01 15:27:08,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,189 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-01 15:27:08,190 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:33 [2020-12-01 15:27:08,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:08,274 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:27:08,274 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38 Second operand 8 states. [2020-12-01 15:27:08,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38. Second operand 8 states. Result 201 states and 241 transitions. Complement of second has 17 states. [2020-12-01 15:27:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:27:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 21 transitions. [2020-12-01 15:27:08,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 21 transitions. Stem has 14 letters. Loop has 10 letters. [2020-12-01 15:27:08,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:08,525 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:08,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:08,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:08,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:08,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:27:08,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:08,649 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:08,649 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:27:08,650 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,654 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:08,678 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:27:08,680 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:08,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:27:08,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,806 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:08,807 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 66 [2020-12-01 15:27:08,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:27:08,813 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:27:08,816 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:08,847 INFO L625 ElimStorePlain]: treesize reduction 33, result has 50.0 percent of original size [2020-12-01 15:27:08,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,850 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-01 15:27:08,851 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:33 [2020-12-01 15:27:08,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:08,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:27:08,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38 Second operand 8 states. [2020-12-01 15:27:09,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38. Second operand 8 states. Result 252 states and 299 transitions. Complement of second has 21 states. [2020-12-01 15:27:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:27:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 25 transitions. [2020-12-01 15:27:09,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 14 letters. Loop has 10 letters. [2020-12-01 15:27:09,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:09,244 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:09,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:09,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:09,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:09,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:27:09,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:09,357 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:09,358 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:27:09,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:09,369 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:09,396 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:27:09,397 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:09,398 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:27:09,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:09,559 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:09,559 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 66 [2020-12-01 15:27:09,562 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-01 15:27:09,564 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:27:09,568 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:09,638 INFO L625 ElimStorePlain]: treesize reduction 20, result has 71.8 percent of original size [2020-12-01 15:27:09,640 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:09,643 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-01 15:27:09,644 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:51 [2020-12-01 15:27:09,645 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:09,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:09,733 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:27:09,733 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38 Second operand 8 states. [2020-12-01 15:27:10,039 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38. Second operand 8 states. Result 304 states and 370 transitions. Complement of second has 39 states. [2020-12-01 15:27:10,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:27:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 29 transitions. [2020-12-01 15:27:10,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 29 transitions. Stem has 14 letters. Loop has 10 letters. [2020-12-01 15:27:10,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:10,043 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:10,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:10,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:10,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:27:10,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:10,185 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:10,185 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:27:10,186 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:10,188 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:10,214 INFO L625 ElimStorePlain]: treesize reduction 16, result has 61.0 percent of original size [2020-12-01 15:27:10,219 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:10,219 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:17 [2020-12-01 15:27:10,250 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:10,415 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:10,416 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 66 [2020-12-01 15:27:10,420 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:27:10,422 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:27:10,424 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:10,468 INFO L625 ElimStorePlain]: treesize reduction 33, result has 50.0 percent of original size [2020-12-01 15:27:10,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:10,473 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-01 15:27:10,473 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:33 [2020-12-01 15:27:10,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:10,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:10,556 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:27:10,556 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38 Second operand 8 states. [2020-12-01 15:27:10,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 105 states and 134 transitions. cyclomatic complexity: 38. Second operand 8 states. Result 414 states and 504 transitions. Complement of second has 51 states. [2020-12-01 15:27:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:10,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:27:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 33 transitions. [2020-12-01 15:27:10,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 33 transitions. Stem has 14 letters. Loop has 10 letters. [2020-12-01 15:27:10,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:10,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 33 transitions. Stem has 24 letters. Loop has 10 letters. [2020-12-01 15:27:10,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:10,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 33 transitions. Stem has 14 letters. Loop has 20 letters. [2020-12-01 15:27:10,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:10,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 504 transitions. [2020-12-01 15:27:10,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-12-01 15:27:10,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 202 states and 250 transitions. [2020-12-01 15:27:10,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2020-12-01 15:27:10,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2020-12-01 15:27:10,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 250 transitions. [2020-12-01 15:27:10,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:10,888 INFO L692 BuchiCegarLoop]: Abstraction has 202 states and 250 transitions. [2020-12-01 15:27:10,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 250 transitions. [2020-12-01 15:27:10,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 95. [2020-12-01 15:27:10,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-01 15:27:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2020-12-01 15:27:10,893 INFO L715 BuchiCegarLoop]: Abstraction has 95 states and 122 transitions. [2020-12-01 15:27:10,893 INFO L595 BuchiCegarLoop]: Abstraction has 95 states and 122 transitions. [2020-12-01 15:27:10,893 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-12-01 15:27:10,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 122 transitions. [2020-12-01 15:27:10,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2020-12-01 15:27:10,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:10,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:10,895 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:27:10,895 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 1, 1, 1, 1] [2020-12-01 15:27:10,896 INFO L794 eck$LassoCheckResult]: Stem: 6232#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6226#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 6227#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6275#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6276#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6315#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 6313#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 6312#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6263#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6297#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6291#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 6292#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 6284#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6289#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6290#L550-3 [2020-12-01 15:27:10,897 INFO L796 eck$LassoCheckResult]: Loop: 6290#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6229#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 6241#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 6237#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6238#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6253#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6254#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 6247#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 6234#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6287#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6286#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6285#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 6282#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 6264#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6265#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6290#L550-3 [2020-12-01 15:27:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:10,898 INFO L82 PathProgramCache]: Analyzing trace with hash -2032003036, now seen corresponding path program 2 times [2020-12-01 15:27:10,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:10,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007298058] [2020-12-01 15:27:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:10,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:10,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:10,923 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:10,925 INFO L82 PathProgramCache]: Analyzing trace with hash 362492857, now seen corresponding path program 1 times [2020-12-01 15:27:10,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:10,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733092792] [2020-12-01 15:27:10,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:27:11,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733092792] [2020-12-01 15:27:11,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148892687] [2020-12-01 15:27:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:27:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:11,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 15:27:11,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:11,232 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:11,232 INFO L382 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 2 case distinctions, treesize of input 47 treesize of output 44 [2020-12-01 15:27:11,233 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,235 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:11,256 INFO L625 ElimStorePlain]: treesize reduction 16, result has 59.0 percent of original size [2020-12-01 15:27:11,258 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:11,258 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:15 [2020-12-01 15:27:11,318 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,325 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:27:11,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,329 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:27:11,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:27:11,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2020-12-01 15:27:11,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369449106] [2020-12-01 15:27:11,418 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:27:11,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:27:11,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-01 15:27:11,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:27:11,419 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. cyclomatic complexity: 33 Second operand 11 states. [2020-12-01 15:27:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:27:11,611 INFO L93 Difference]: Finished difference Result 113 states and 138 transitions. [2020-12-01 15:27:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:27:11,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 138 transitions. [2020-12-01 15:27:11,619 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 34 [2020-12-01 15:27:11,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 63 states and 76 transitions. [2020-12-01 15:27:11,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2020-12-01 15:27:11,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2020-12-01 15:27:11,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 76 transitions. [2020-12-01 15:27:11,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:11,620 INFO L692 BuchiCegarLoop]: Abstraction has 63 states and 76 transitions. [2020-12-01 15:27:11,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 76 transitions. [2020-12-01 15:27:11,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-12-01 15:27:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-01 15:27:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-12-01 15:27:11,623 INFO L715 BuchiCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-12-01 15:27:11,623 INFO L595 BuchiCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-12-01 15:27:11,623 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-12-01 15:27:11,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 72 transitions. [2020-12-01 15:27:11,624 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 34 [2020-12-01 15:27:11,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:11,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:11,625 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1] [2020-12-01 15:27:11,625 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-12-01 15:27:11,625 INFO L794 eck$LassoCheckResult]: Stem: 6502#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6496#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~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; 6497#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6550#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6548#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6546#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 6514#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 6508#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6509#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6554#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6553#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 6552#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 6504#L559-2 [2020-12-01 15:27:11,625 INFO L796 eck$LassoCheckResult]: Loop: 6504#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 6507#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6498#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6499#L551 assume main_#t~mem7 > 0;havoc main_#t~mem7; 6519#L552 assume 0 != main_#t~nondet8;havoc main_#t~nondet8;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem9 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9;call write~int(main_#t~nondet10, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~nondet10; 6504#L559-2 [2020-12-01 15:27:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:11,626 INFO L82 PathProgramCache]: Analyzing trace with hash 391181443, now seen corresponding path program 6 times [2020-12-01 15:27:11,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:11,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006473489] [2020-12-01 15:27:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:11,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:11,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:11,645 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:11,646 INFO L82 PathProgramCache]: Analyzing trace with hash 35409681, now seen corresponding path program 3 times [2020-12-01 15:27:11,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:11,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808507256] [2020-12-01 15:27:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:11,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:11,655 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:11,657 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:11,658 INFO L82 PathProgramCache]: Analyzing trace with hash 957995983, now seen corresponding path program 3 times [2020-12-01 15:27:11,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:11,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337418571] [2020-12-01 15:27:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:11,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:11,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:11,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:11,819 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2020-12-01 15:27:12,280 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 103 [2020-12-01 15:27:12,456 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-01 15:27:12,461 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:12,461 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:12,461 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:12,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:12,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:12,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:12,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:12,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:12,462 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration15_Lasso [2020-12-01 15:27:12,462 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:12,462 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:12,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,690 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-01 15:27:12,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:12,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:13,156 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:13,157 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,160 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 [2020-12-01 15:27:13,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:13,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:13,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:13,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 132 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,184 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 [2020-12-01 15:27:13,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 133 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 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,213 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 [2020-12-01 15:27:13,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 134 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 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,241 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 [2020-12-01 15:27:13,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 135 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 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,275 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 [2020-12-01 15:27:13,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:13,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:13,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:13,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 136 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 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,300 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 [2020-12-01 15:27:13,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 137 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 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,345 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 [2020-12-01 15:27:13,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:13,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:13,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:13,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 138 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,369 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 [2020-12-01 15:27:13,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,408 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 [2020-12-01 15:27:13,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:27:13,487 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 [2020-12-01 15:27:13,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 141 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,518 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 [2020-12-01 15:27:13,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:13,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:13,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:13,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:13,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:13,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:13,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:13,534 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-12-01 15:27:13,534 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_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 142 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:13,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:13,539 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:27:13,539 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:13,539 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)_11) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_11 Supporting invariants [] [2020-12-01 15:27:13,587 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:27:13,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:27:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:13,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:27:13,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:13,646 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:13,674 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:13,674 INFO L382 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 15 treesize of output 15 [2020-12-01 15:27:13,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:13,677 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:13,680 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-01 15:27:13,686 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:13,687 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:13,687 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:10 [2020-12-01 15:27:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:13,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:27:13,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:13,818 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2020-12-01 15:27:13,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 72 transitions. cyclomatic complexity: 18 Second operand 9 states. [2020-12-01 15:27:13,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 72 transitions. cyclomatic complexity: 18. Second operand 9 states. Result 91 states and 106 transitions. Complement of second has 9 states. [2020-12-01 15:27:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:27:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2020-12-01 15:27:13,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 12 letters. Loop has 5 letters. [2020-12-01 15:27:13,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:13,965 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:13,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:14,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:27:14,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:14,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:14,056 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:14,057 INFO L382 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 15 treesize of output 15 [2020-12-01 15:27:14,058 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:14,059 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:14,075 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-01 15:27:14,081 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:14,082 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:14,082 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:10 [2020-12-01 15:27:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:14,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:27:14,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:14,201 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 3 loop predicates [2020-12-01 15:27:14,201 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 72 transitions. cyclomatic complexity: 18 Second operand 9 states. [2020-12-01 15:27:14,375 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 72 transitions. cyclomatic complexity: 18. Second operand 9 states. Result 91 states and 106 transitions. Complement of second has 9 states. [2020-12-01 15:27:14,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:27:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2020-12-01 15:27:14,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 12 letters. Loop has 5 letters. [2020-12-01 15:27:14,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:14,377 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:14,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:14,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:27:14,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:14,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:14,492 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:14,492 INFO L382 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 15 treesize of output 15 [2020-12-01 15:27:14,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:14,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:14,497 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-12-01 15:27:14,504 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:14,505 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:14,505 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:10 [2020-12-01 15:27:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:14,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:27:14,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:14,586 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2020-12-01 15:27:14,586 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 72 transitions. cyclomatic complexity: 18 Second operand 9 states. [2020-12-01 15:27:14,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 72 transitions. cyclomatic complexity: 18. Second operand 9 states. Result 92 states and 109 transitions. Complement of second has 16 states. [2020-12-01 15:27:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 4 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:27:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2020-12-01 15:27:14,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 12 letters. Loop has 5 letters. [2020-12-01 15:27:14,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:14,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 17 letters. Loop has 5 letters. [2020-12-01 15:27:14,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:14,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 12 letters. Loop has 10 letters. [2020-12-01 15:27:14,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:14,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 109 transitions. [2020-12-01 15:27:14,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2020-12-01 15:27:14,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 45 states and 53 transitions. [2020-12-01 15:27:14,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-12-01 15:27:14,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-12-01 15:27:14,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 53 transitions. [2020-12-01 15:27:14,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:14,829 INFO L692 BuchiCegarLoop]: Abstraction has 45 states and 53 transitions. [2020-12-01 15:27:14,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 53 transitions. [2020-12-01 15:27:14,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 28. [2020-12-01 15:27:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-01 15:27:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-12-01 15:27:14,831 INFO L715 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-12-01 15:27:14,831 INFO L595 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-12-01 15:27:14,831 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-12-01 15:27:14,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 34 transitions. [2020-12-01 15:27:14,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2020-12-01 15:27:14,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:14,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:14,833 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:27:14,833 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 2, 1] [2020-12-01 15:27:14,833 INFO L794 eck$LassoCheckResult]: Stem: 7119#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7117#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem7, main_#t~nondet8, main_#t~mem9, main_#t~nondet10, main_#t~mem11, main_#t~nondet12, main_#t~mem13, main_#t~mem14, main_#t~nondet15, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 7118#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 7144#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 7122#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 7123#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 7134#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 7126#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 7128#L550-1 [2020-12-01 15:27:14,833 INFO L796 eck$LassoCheckResult]: Loop: 7128#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 7132#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 7121#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 7131#L559 assume !(0 != main_#t~nondet12);havoc main_#t~nondet12;call main_#t~mem14 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem14 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem14;call write~int(main_#t~nondet15, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet15; 7133#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 7142#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 7141#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 7140#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 7139#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 7138#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 7127#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 7122#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4); 7123#L551 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 7134#L559 assume 0 != main_#t~nondet12;havoc main_#t~nondet12;call main_#t~mem13 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(1 + main_#t~mem13, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem13; 7126#L559-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := 0 != main_#t~mem4; 7128#L550-1 [2020-12-01 15:27:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:14,834 INFO L82 PathProgramCache]: Analyzing trace with hash 177757272, now seen corresponding path program 4 times [2020-12-01 15:27:14,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:14,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575981262] [2020-12-01 15:27:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:14,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:14,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:14,848 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:14,848 INFO L82 PathProgramCache]: Analyzing trace with hash -940837479, now seen corresponding path program 3 times [2020-12-01 15:27:14,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:14,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929768422] [2020-12-01 15:27:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:14,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:14,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:14,871 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:14,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:14,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1319272546, now seen corresponding path program 5 times [2020-12-01 15:27:14,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:14,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732151959] [2020-12-01 15:27:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:14,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:14,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:14,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:15,409 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 103 [2020-12-01 15:27:15,742 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 83 [2020-12-01 15:27:15,837 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:15,837 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:15,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:15,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:15,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:15,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:15,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:15,838 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:15,838 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration16_Lasso [2020-12-01 15:27:15,838 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:15,838 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:15,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:15,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:16,303 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-01 15:27:16,639 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-01 15:27:16,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:16,897 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-12-01 15:27:17,187 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:17,187 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,190 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 [2020-12-01 15:27:17,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 144 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 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,218 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 [2020-12-01 15:27:17,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 145 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 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,241 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 [2020-12-01 15:27:17,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 146 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 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,266 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 [2020-12-01 15:27:17,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 147 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 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:17,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 148 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 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,335 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 [2020-12-01 15:27:17,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 149 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 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,357 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 [2020-12-01 15:27:17,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 150 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 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,379 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 [2020-12-01 15:27:17,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 151 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 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,401 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 [2020-12-01 15:27:17,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 152 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 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,426 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 [2020-12-01 15:27:17,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 153 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 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:17,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 154 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 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:17,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 155 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 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:17,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 156 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 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,519 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 [2020-12-01 15:27:17,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 157 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 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:17,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 158 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 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,565 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 [2020-12-01 15:27:17,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 159 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 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,592 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 [2020-12-01 15:27:17,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 160 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 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,622 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 [2020-12-01 15:27:17,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:17,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:17,629 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 161 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 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,649 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 [2020-12-01 15:27:17,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:17,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:17,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:17,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:17,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:17,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:17,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:17,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:17,669 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:27:17,669 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a95d05b9-9bf5-4a83-aef0-7096fb106086/bin/uautomizer/z3 Starting monitored process 162 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 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:17,685 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:17,686 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:27:17,686 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:17,686 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_12) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_12 Supporting invariants [] [2020-12-01 15:27:17,730 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:27:17,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 15:27:17,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:17,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:17,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:17,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:27:17,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:17,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:17,854 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:17,854 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 62 [2020-12-01 15:27:17,856 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 15:27:17,859 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:27:17,860 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:27:17,862 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:17,881 INFO L625 ElimStorePlain]: treesize reduction 16, result has 68.6 percent of original size [2020-12-01 15:27:17,882 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:17,882 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:28 [2020-12-01 15:27:17,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 15:27:17,915 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:17,915 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 27 [2020-12-01 15:27:17,916 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:17,920 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2020-12-01 15:27:17,926 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:17,939 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:17,939 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-12-01 15:27:17,940 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:81, output treesize:47 [2020-12-01 15:27:17,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:27:17,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-01 15:27:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 15:27:17,972 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2020-12-01 15:27:17,984 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:17,990 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:17,991 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 27 [2020-12-01 15:27:17,992 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:18,006 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:18,008 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:27:18,008 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:81, output treesize:19 [2020-12-01 15:27:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 15:27:18,022 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2020-12-01 15:27:18,022 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 8 Second operand 7 states. [2020-12-01 15:27:18,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 8. Second operand 7 states. Result 51 states and 64 transitions. Complement of second has 10 states. [2020-12-01 15:27:18,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:18,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-01 15:27:18,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2020-12-01 15:27:18,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 8 letters. Loop has 15 letters. [2020-12-01 15:27:18,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:18,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 23 letters. Loop has 15 letters. [2020-12-01 15:27:18,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:18,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 8 letters. Loop has 30 letters. [2020-12-01 15:27:18,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:18,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 64 transitions. [2020-12-01 15:27:18,070 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:18,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 0 states and 0 transitions. [2020-12-01 15:27:18,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:27:18,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:27:18,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:27:18,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:27:18,071 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:18,071 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:18,071 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:18,071 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-12-01 15:27:18,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:27:18,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:18,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:27:18,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:27:18 BoogieIcfgContainer [2020-12-01 15:27:18,077 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:27:18,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:27:18,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:27:18,078 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:27:18,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:26:33" (3/4) ... [2020-12-01 15:27:18,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:27:18,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:27:18,082 INFO L168 Benchmark]: Toolchain (without parser) took 45522.65 ms. Allocated memory was 136.3 MB in the beginning and 497.0 MB in the end (delta: 360.7 MB). Free memory was 108.7 MB in the beginning and 387.5 MB in the end (delta: -278.8 MB). Peak memory consumption was 81.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,083 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 88.1 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:18,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.10 ms. Allocated memory is still 136.3 MB. Free memory was 108.4 MB in the beginning and 104.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.39 ms. Allocated memory is still 136.3 MB. Free memory was 104.0 MB in the beginning and 102.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,084 INFO L168 Benchmark]: Boogie Preprocessor took 60.54 ms. Allocated memory is still 136.3 MB. Free memory was 102.2 MB in the beginning and 101.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,084 INFO L168 Benchmark]: RCFGBuilder took 567.58 ms. Allocated memory is still 136.3 MB. Free memory was 101.2 MB in the beginning and 86.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,085 INFO L168 Benchmark]: BuchiAutomizer took 44100.88 ms. Allocated memory was 136.3 MB in the beginning and 497.0 MB in the end (delta: 360.7 MB). Free memory was 86.8 MB in the beginning and 388.6 MB in the end (delta: -301.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,085 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 497.0 MB. Free memory was 388.6 MB in the beginning and 387.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:18,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 88.1 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 701.10 ms. Allocated memory is still 136.3 MB. Free memory was 108.4 MB in the beginning and 104.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.39 ms. Allocated memory is still 136.3 MB. Free memory was 104.0 MB in the beginning and 102.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.54 ms. Allocated memory is still 136.3 MB. Free memory was 102.2 MB in the beginning and 101.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 567.58 ms. Allocated memory is still 136.3 MB. Free memory was 101.2 MB in the beginning and 86.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 44100.88 ms. Allocated memory was 136.3 MB in the beginning and 497.0 MB in the end (delta: 360.7 MB). Free memory was 86.8 MB in the beginning and 388.6 MB in the end (delta: -301.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.10 ms. Allocated memory is still 497.0 MB. Free memory was 388.6 MB in the beginning and 387.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 - 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 - 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 16 terminating modules (4 trivial, 8 deterministic, 4 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 7 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 8 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 11 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. One nondeterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x][x] + 1 and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 11 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 8 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.0s and 17 iterations. TraceHistogramMax:3. Analysis of lassos took 33.5s. Construction of modules took 1.3s. Büchi inclusion checks took 8.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 15. Automata minimization 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 377 StatesRemovedByMinimization, 13 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 143 states and ocurred in iteration 11. Nontrivial modules had stage [7, 1, 3, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 13/25 HoareTripleCheckerStatistics: 191 SDtfs, 281 SDslu, 115 SDs, 0 SdLazy, 1106 SolverSat, 241 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso12 LassoPreprocessingBenchmarks: Lassos: inital310 mio100 ax107 hnf100 lsp99 ukn59 mio100 lsp39 div100 bol104 ite100 ukn100 eq171 hnf91 smp84 dnf163 smp83 tf100 neg98 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 171ms VariablesStem: 5 VariablesLoop: 5 DisjunctsStem: 3 DisjunctsLoop: 3 SupportingInvariants: 6 MotzkinApplications: 42 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...