./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 987435cc8130e848f1b087d0b65ab8d71c3dfa3c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:37:03,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:37:03,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:37:03,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:37:03,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:37:03,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:37:03,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:37:03,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:37:03,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:37:03,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:37:03,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:37:03,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:37:03,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:37:03,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:37:03,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:37:03,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:37:03,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:37:03,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:37:03,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:37:03,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:37:03,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:37:03,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:37:03,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:37:03,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:37:03,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:37:03,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:37:03,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:37:03,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:37:03,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:37:03,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:37:03,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:37:03,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:37:03,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:37:03,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:37:03,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:37:03,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:37:03,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:37:03,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:37:03,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:37:03,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:37:03,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:37:03,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 22:37:03,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:37:03,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:37:03,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:37:03,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:37:03,774 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:37:03,774 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:37:03,774 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:37:03,774 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:37:03,774 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:37:03,775 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:37:03,776 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:37:03,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:37:03,776 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:37:03,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:37:03,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:37:03,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:37:03,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:37:03,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:37:03,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:37:03,777 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:37:03,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:37:03,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:37:03,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:37:03,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:37:03,778 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:37:03,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:37:03,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:37:03,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:37:03,779 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:37:03,782 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:37:03,782 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_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 987435cc8130e848f1b087d0b65ab8d71c3dfa3c [2020-11-29 22:37:04,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:37:04,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:37:04,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:37:04,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:37:04,099 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:37:04,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i [2020-11-29 22:37:04,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/data/c0eb799f6/166efcead8dc41209acc37df90abc4c2/FLAGbccee8f7b [2020-11-29 22:37:04,807 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:37:04,808 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i [2020-11-29 22:37:04,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/data/c0eb799f6/166efcead8dc41209acc37df90abc4c2/FLAGbccee8f7b [2020-11-29 22:37:05,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/data/c0eb799f6/166efcead8dc41209acc37df90abc4c2 [2020-11-29 22:37:05,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:37:05,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:37:05,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:37:05,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:37:05,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:37:05,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26052534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05, skipping insertion in model container [2020-11-29 22:37:05,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:37:05,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:37:05,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:37:05,541 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:37:05,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:37:05,656 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:37:05,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05 WrapperNode [2020-11-29 22:37:05,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:37:05,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:37:05,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:37:05,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:37:05,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:37:05,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:37:05,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:37:05,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:37:05,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... [2020-11-29 22:37:05,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:37:05,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:37:05,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:37:05,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:37:05,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:37:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:37:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:37:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:37:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:37:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:37:06,299 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:37:06,299 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 22:37:06,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:37:06 BoogieIcfgContainer [2020-11-29 22:37:06,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:37:06,303 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:37:06,303 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:37:06,306 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:37:06,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:37:06,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:37:05" (1/3) ... [2020-11-29 22:37:06,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b7ef846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:37:06, skipping insertion in model container [2020-11-29 22:37:06,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:37:06,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:37:05" (2/3) ... [2020-11-29 22:37:06,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b7ef846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:37:06, skipping insertion in model container [2020-11-29 22:37:06,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:37:06,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:37:06" (3/3) ... [2020-11-29 22:37:06,312 INFO L373 chiAutomizerObserver]: Analyzing ICFG array03-alloca-1.i [2020-11-29 22:37:06,392 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:37:06,392 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:37:06,392 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:37:06,392 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:37:06,392 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:37:06,393 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:37:06,393 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:37:06,393 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:37:06,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 22:37:06,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:37:06,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:06,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:06,429 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 22:37:06,429 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 22:37:06,430 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:37:06,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 22:37:06,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:37:06,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:06,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:06,432 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 22:37:06,432 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 22:37:06,439 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 6#L567true assume !(main_~array_size~0 < 1); 10#L567-2true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 3#L551-3true [2020-11-29 22:37:06,440 INFO L796 eck$LassoCheckResult]: Loop: 3#L551-3true assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 13#L553true assume 0 == test_fun_#t~mem3;havoc test_fun_#t~mem3;test_fun_~res~0 := 1; 7#L558-2true assume !true; 9#L558-3true call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 17#L551-2true test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 3#L551-3true [2020-11-29 22:37:06,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:06,445 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-29 22:37:06,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:06,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70147234] [2020-11-29 22:37:06,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:06,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:06,569 INFO L82 PathProgramCache]: Analyzing trace with hash 44963621, now seen corresponding path program 1 times [2020-11-29 22:37:06,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:06,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360550223] [2020-11-29 22:37:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:06,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360550223] [2020-11-29 22:37:06,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:37:06,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:37:06,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240282998] [2020-11-29 22:37:06,609 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:37:06,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:37:06,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:37:06,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:37:06,626 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-29 22:37:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:37:06,632 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-11-29 22:37:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:37:06,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-11-29 22:37:06,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:37:06,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2020-11-29 22:37:06,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 22:37:06,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 22:37:06,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-11-29 22:37:06,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:37:06,642 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-29 22:37:06,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-11-29 22:37:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 22:37:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 22:37:06,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-11-29 22:37:06,667 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-29 22:37:06,668 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-29 22:37:06,668 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:37:06,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-11-29 22:37:06,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:37:06,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:06,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:06,670 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 22:37:06,670 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:37:06,670 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 39#L567 assume !(main_~array_size~0 < 1); 47#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 40#L551-3 [2020-11-29 22:37:06,670 INFO L796 eck$LassoCheckResult]: Loop: 40#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 41#L553 assume 0 == test_fun_#t~mem3;havoc test_fun_#t~mem3;test_fun_~res~0 := 1; 42#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 44#L558 assume !(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5; 45#L558-3 call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 48#L551-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 40#L551-3 [2020-11-29 22:37:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:06,671 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2020-11-29 22:37:06,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:06,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797406335] [2020-11-29 22:37:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:06,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:06,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1393657929, now seen corresponding path program 1 times [2020-11-29 22:37:06,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:06,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356469717] [2020-11-29 22:37:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:06,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:06,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1898369747, now seen corresponding path program 1 times [2020-11-29 22:37:06,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:06,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534644106] [2020-11-29 22:37:06,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:06,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:06,770 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:06,892 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-29 22:37:07,259 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-11-29 22:37:07,369 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:37:07,370 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:37:07,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:37:07,372 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:37:07,372 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:37:07,372 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:07,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:37:07,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:37:07,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: array03-alloca-1.i_Iteration2_Lasso [2020-11-29 22:37:07,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:37:07,377 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:37:07,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,617 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-11-29 22:37:07,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:07,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:08,134 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:37:08,139 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:08,168 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:08,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,310 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 [2020-11-29 22:37:08,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:08,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,451 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 [2020-11-29 22:37:08,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:08,459 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 [2020-11-29 22:37:08,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:08,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:08,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:08,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:08,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:08,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:08,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:08,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:37:08,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:08,857 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 [2020-11-29 22:37:08,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:08,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:08,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:08,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:08,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:08,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:37:08,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:37:09,098 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-29 22:37:09,098 INFO L444 ModelExtractionUtils]: 21 out of 34 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:09,107 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:09,110 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 22:37:09,111 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:37:09,111 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1, ULTIMATE.start_test_fun_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1 - 4*ULTIMATE.start_test_fun_~i~0 Supporting invariants [1*ULTIMATE.start_test_fun_~a.offset >= 0] [2020-11-29 22:37:09,163 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 22:37:09,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 22:37:09,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:09,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 22:37:09,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:09,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 22:37:09,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:09,306 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:37:09,306 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-29 22:37:09,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 18 states and 26 transitions. Complement of second has 4 states. [2020-11-29 22:37:09,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:37:09,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:37:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-11-29 22:37:09,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2020-11-29 22:37:09,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:09,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2020-11-29 22:37:09,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:09,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 12 letters. [2020-11-29 22:37:09,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:09,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 26 transitions. [2020-11-29 22:37:09,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:09,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 24 transitions. [2020-11-29 22:37:09,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-29 22:37:09,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-29 22:37:09,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2020-11-29 22:37:09,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:37:09,397 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-11-29 22:37:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2020-11-29 22:37:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 22:37:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 22:37:09,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2020-11-29 22:37:09,399 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-11-29 22:37:09,400 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-11-29 22:37:09,400 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:37:09,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2020-11-29 22:37:09,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:09,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:09,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:09,401 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:37:09,401 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 22:37:09,401 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 142#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 143#L567 assume !(main_~array_size~0 < 1); 152#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 138#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 140#L553 assume 0 == test_fun_#t~mem3;havoc test_fun_#t~mem3;test_fun_~res~0 := 1; 144#L558-2 [2020-11-29 22:37:09,402 INFO L796 eck$LassoCheckResult]: Loop: 144#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 148#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem7;havoc test_fun_#t~post8; 144#L558-2 [2020-11-29 22:37:09,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:09,402 INFO L82 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2020-11-29 22:37:09,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:09,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132961291] [2020-11-29 22:37:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,432 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:09,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:09,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2020-11-29 22:37:09,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:09,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571156326] [2020-11-29 22:37:09,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:09,439 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:09,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044647604] [2020-11-29 22:37:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,495 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,504 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:09,505 INFO L82 PathProgramCache]: Analyzing trace with hash 176795341, now seen corresponding path program 1 times [2020-11-29 22:37:09,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:09,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701936614] [2020-11-29 22:37:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:09,514 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:09,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780730891] [2020-11-29 22:37:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:09,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:37:09,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:09,697 INFO L384 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 7 [2020-11-29 22:37:09,702 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:37:09,749 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:37:09,749 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:37:09,750 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2020-11-29 22:37:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:09,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701936614] [2020-11-29 22:37:09,764 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 22:37:09,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780730891] [2020-11-29 22:37:09,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:37:09,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:37:09,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025347319] [2020-11-29 22:37:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:37:09,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:37:09,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:37:09,817 INFO L87 Difference]: Start difference. First operand 16 states and 24 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-11-29 22:37:09,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:37:09,862 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-11-29 22:37:09,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:37:09,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-11-29 22:37:09,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:09,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 26 transitions. [2020-11-29 22:37:09,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-29 22:37:09,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-29 22:37:09,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-11-29 22:37:09,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:37:09,865 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-29 22:37:09,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-11-29 22:37:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-11-29 22:37:09,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 22:37:09,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-11-29 22:37:09,867 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-29 22:37:09,868 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-29 22:37:09,868 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:37:09,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-11-29 22:37:09,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:09,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:09,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:09,869 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:37:09,869 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 22:37:09,869 INFO L794 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 212#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 213#L567 assume !(main_~array_size~0 < 1); 222#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 208#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 210#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 214#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 218#L558-2 [2020-11-29 22:37:09,869 INFO L796 eck$LassoCheckResult]: Loop: 218#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 217#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem7;havoc test_fun_#t~post8; 218#L558-2 [2020-11-29 22:37:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:09,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1806818449, now seen corresponding path program 1 times [2020-11-29 22:37:09,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:09,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417884485] [2020-11-29 22:37:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:09,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:09,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 2 times [2020-11-29 22:37:09,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:09,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177379923] [2020-11-29 22:37:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:09,926 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:09,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500546056] [2020-11-29 22:37:09,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:09,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 22:37:09,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-29 22:37:09,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:09,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:10,001 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:10,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1185742934, now seen corresponding path program 1 times [2020-11-29 22:37:10,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:10,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870775191] [2020-11-29 22:37:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:10,012 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:10,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273412503] [2020-11-29 22:37:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:10,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:10,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:10,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:10,379 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-11-29 22:37:10,462 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:37:10,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:37:10,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:37:10,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:37:10,462 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:37:10,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:10,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:37:10,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:37:10,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: array03-alloca-1.i_Iteration4_Lasso [2020-11-29 22:37:10,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:37:10,463 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:37:10,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,644 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-11-29 22:37:10,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:10,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:11,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:37:11,120 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:11,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:11,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:11,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:11,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:11,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:11,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:11,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:11,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:11,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:11,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:11,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:11,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:11,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:11,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:11,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:11,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:11,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:11,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:11,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:11,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:11,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:11,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:11,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:11,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:11,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:11,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:11,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:11,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:11,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:11,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:11,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:11,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:11,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:11,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:11,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:11,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:11,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:11,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:11,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:11,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:11,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:11,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:11,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:11,293 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:11,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:11,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:11,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:11,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:11,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:11,321 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:11,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:37:11,337 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:37:11,371 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 22:37:11,372 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:11,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:11,378 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 22:37:11,378 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:37:11,378 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_2 Supporting invariants [] [2020-11-29 22:37:11,420 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-29 22:37:11,422 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 22:37:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:11,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:37:11,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:11,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:37:11,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:11,482 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:37:11,482 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-11-29 22:37:11,509 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 40 states and 54 transitions. Complement of second has 7 states. [2020-11-29 22:37:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 22:37:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:37:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 22:37:11,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 22:37:11,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:11,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-29 22:37:11,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:11,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-29 22:37:11,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:11,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 54 transitions. [2020-11-29 22:37:11,517 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 22:37:11,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 35 states and 47 transitions. [2020-11-29 22:37:11,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-29 22:37:11,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-29 22:37:11,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 47 transitions. [2020-11-29 22:37:11,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:37:11,518 INFO L691 BuchiCegarLoop]: Abstraction has 35 states and 47 transitions. [2020-11-29 22:37:11,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 47 transitions. [2020-11-29 22:37:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-11-29 22:37:11,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 22:37:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-11-29 22:37:11,522 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-11-29 22:37:11,522 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-11-29 22:37:11,522 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 22:37:11,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 43 transitions. [2020-11-29 22:37:11,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:11,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:11,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:11,528 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:37:11,529 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 22:37:11,529 INFO L794 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 329#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 330#L567 assume !(main_~array_size~0 < 1); 345#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 331#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 333#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 347#L555 assume test_fun_#t~mem4 < 0;havoc test_fun_#t~mem4;test_fun_~res~0 := 0; 341#L558-2 [2020-11-29 22:37:11,529 INFO L796 eck$LassoCheckResult]: Loop: 341#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 340#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem7;havoc test_fun_#t~post8; 341#L558-2 [2020-11-29 22:37:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:11,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1806818447, now seen corresponding path program 1 times [2020-11-29 22:37:11,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:11,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964859841] [2020-11-29 22:37:11,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:11,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:11,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:11,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:11,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 3 times [2020-11-29 22:37:11,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:11,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893960810] [2020-11-29 22:37:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:11,584 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:11,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763765401] [2020-11-29 22:37:11,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:11,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-11-29 22:37:11,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-29 22:37:11,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:11,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:11,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:11,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1185741012, now seen corresponding path program 1 times [2020-11-29 22:37:11,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:11,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724402671] [2020-11-29 22:37:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:11,643 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:11,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925235727] [2020-11-29 22:37:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:11,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:37:11,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:11,757 INFO L384 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 7 [2020-11-29 22:37:11,758 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:37:11,761 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:37:11,761 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:37:11,761 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2020-11-29 22:37:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:11,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724402671] [2020-11-29 22:37:11,778 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 22:37:11,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925235727] [2020-11-29 22:37:11,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:37:11,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:37:11,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971603430] [2020-11-29 22:37:11,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:37:11,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:37:11,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:37:11,841 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. cyclomatic complexity: 16 Second operand 5 states. [2020-11-29 22:37:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:37:11,916 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2020-11-29 22:37:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:37:11,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2020-11-29 22:37:11,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:11,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 41 transitions. [2020-11-29 22:37:11,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-29 22:37:11,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-29 22:37:11,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2020-11-29 22:37:11,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:37:11,920 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2020-11-29 22:37:11,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2020-11-29 22:37:11,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2020-11-29 22:37:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 22:37:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-11-29 22:37:11,923 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-29 22:37:11,923 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-29 22:37:11,923 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 22:37:11,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-11-29 22:37:11,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:11,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:11,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:11,925 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:37:11,925 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 22:37:11,925 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 433#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 434#L567 assume !(main_~array_size~0 < 1); 447#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 435#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 436#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 441#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 445#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 449#L558 assume !(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5; 457#L558-3 call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 456#L551-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 454#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 438#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 439#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 443#L558-2 [2020-11-29 22:37:11,925 INFO L796 eck$LassoCheckResult]: Loop: 443#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 442#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem7;havoc test_fun_#t~post8; 443#L558-2 [2020-11-29 22:37:11,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:11,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1864345184, now seen corresponding path program 1 times [2020-11-29 22:37:11,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:11,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405271809] [2020-11-29 22:37:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:12,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405271809] [2020-11-29 22:37:12,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:37:12,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:37:12,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785795169] [2020-11-29 22:37:12,022 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:37:12,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:12,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 4 times [2020-11-29 22:37:12,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:12,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415434714] [2020-11-29 22:37:12,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:12,025 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:12,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311796490] [2020-11-29 22:37:12,026 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:12,062 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-29 22:37:12,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-29 22:37:12,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:12,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:12,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:37:12,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:37:12,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:37:12,116 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand 6 states. [2020-11-29 22:37:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:37:12,185 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-11-29 22:37:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:37:12,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2020-11-29 22:37:12,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:12,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 33 states and 41 transitions. [2020-11-29 22:37:12,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 22:37:12,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 22:37:12,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2020-11-29 22:37:12,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:37:12,189 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2020-11-29 22:37:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2020-11-29 22:37:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-11-29 22:37:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 22:37:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-29 22:37:12,198 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 22:37:12,198 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 22:37:12,199 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 22:37:12,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2020-11-29 22:37:12,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 22:37:12,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:37:12,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:37:12,201 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:37:12,202 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 22:37:12,202 INFO L794 eck$LassoCheckResult]: Stem: 519#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 505#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 506#L567 assume !(main_~array_size~0 < 1); 520#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 507#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 508#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 533#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 521#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 517#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem7;havoc test_fun_#t~post8; 518#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 528#L558 assume !(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5; 527#L558-3 call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 526#L551-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 525#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 510#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 511#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 516#L558-2 [2020-11-29 22:37:12,202 INFO L796 eck$LassoCheckResult]: Loop: 516#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 515#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem7;havoc test_fun_#t~post8; 516#L558-2 [2020-11-29 22:37:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:12,203 INFO L82 PathProgramCache]: Analyzing trace with hash 221162235, now seen corresponding path program 1 times [2020-11-29 22:37:12,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:12,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586264564] [2020-11-29 22:37:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:12,210 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:12,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865885604] [2020-11-29 22:37:12,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:12,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:12,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,316 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:12,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 5 times [2020-11-29 22:37:12,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:12,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322775566] [2020-11-29 22:37:12,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:12,332 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:12,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101640304] [2020-11-29 22:37:12,332 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:12,374 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 22:37:12,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-29 22:37:12,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:12,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:12,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:12,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2083511360, now seen corresponding path program 2 times [2020-11-29 22:37:12,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:37:12,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921481891] [2020-11-29 22:37:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:37:12,407 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 22:37:12,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646057179] [2020-11-29 22:37:12,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:37:12,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 22:37:12,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-11-29 22:37:12,494 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:37:12,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:37:12,531 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:37:13,095 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 100 [2020-11-29 22:37:13,207 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-29 22:37:13,210 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:37:13,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:37:13,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:37:13,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:37:13,210 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:37:13,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:13,210 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:37:13,210 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:37:13,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: array03-alloca-1.i_Iteration7_Lasso [2020-11-29 22:37:13,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:37:13,211 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:37:13,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,415 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-29 22:37:13,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:37:13,805 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:37:13,805 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:13,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:13,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:13,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:13,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:13,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:13,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:13,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:13,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:13,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:13,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:13,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:13,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:37:13,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:13,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:13,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:13,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:37:13,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:37:13,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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 [2020-11-29 22:37:13,867 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 [2020-11-29 22:37:13,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:13,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:13,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:13,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:13,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:13,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:37:13,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:13,898 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 [2020-11-29 22:37:13,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:13,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:13,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:13,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:13,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:13,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:37:13,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:13,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:13,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:13,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:13,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:13,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:13,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:13,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:37:13,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/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) [2020-11-29 22:37:13,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:37:13,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:37:13,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:37:13,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:37:13,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:37:13,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:37:13,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:13,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:37:14,006 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 22:37:14,007 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78d8bc-d552-4c3a-ab60-439fd5a3c757/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:37:14,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:37:14,014 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 22:37:14,014 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:37:14,014 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ ULTIMATE.start_test_fun_~a.offset (* ULTIMATE.start_test_fun_~i~0 4)))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ ULTIMATE.start_test_fun_~a.offset (* ULTIMATE.start_test_fun_~i~0 4)))_1 Supporting invariants [] [2020-11-29 22:37:14,056 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 22:37:14,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 22:37:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:14,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:37:14,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:14,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:37:14,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:14,132 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:37:14,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-29 22:37:14,151 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 35 states and 44 transitions. Complement of second has 7 states. [2020-11-29 22:37:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 22:37:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:37:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-11-29 22:37:14,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-29 22:37:14,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:14,152 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 22:37:14,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:14,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:37:14,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:14,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:37:14,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:14,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:14,206 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:37:14,207 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-29 22:37:14,225 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 35 states and 44 transitions. Complement of second has 7 states. [2020-11-29 22:37:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 22:37:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:37:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-11-29 22:37:14,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-29 22:37:14,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:14,227 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 22:37:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:37:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:14,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:37:14,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:37:14,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:37:14,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:37:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:37:14,286 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 2 loop predicates [2020-11-29 22:37:14,286 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-29 22:37:14,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 39 states and 50 transitions. Complement of second has 6 states. [2020-11-29 22:37:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 22:37:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:37:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-11-29 22:37:14,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-29 22:37:14,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:14,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 18 letters. Loop has 2 letters. [2020-11-29 22:37:14,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:14,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 4 letters. [2020-11-29 22:37:14,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:37:14,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2020-11-29 22:37:14,318 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:37:14,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2020-11-29 22:37:14,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:37:14,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:37:14,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:37:14,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:37:14,318 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:37:14,318 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:37:14,318 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:37:14,318 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 22:37:14,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:37:14,319 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:37:14,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:37:14,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:37:14 BoogieIcfgContainer [2020-11-29 22:37:14,322 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:37:14,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:37:14,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:37:14,323 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:37:14,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:37:06" (3/4) ... [2020-11-29 22:37:14,325 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:37:14,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:37:14,329 INFO L168 Benchmark]: Toolchain (without parser) took 9233.90 ms. Allocated memory was 83.9 MB in the beginning and 151.0 MB in the end (delta: 67.1 MB). Free memory was 54.8 MB in the beginning and 67.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 53.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:37:14,330 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 39.8 MB in the beginning and 39.8 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:37:14,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.95 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 54.5 MB in the beginning and 71.9 MB in the end (delta: -17.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:37:14,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.68 ms. Allocated memory is still 104.9 MB. Free memory was 71.9 MB in the beginning and 70.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:37:14,334 INFO L168 Benchmark]: Boogie Preprocessor took 52.50 ms. Allocated memory is still 104.9 MB. Free memory was 70.3 MB in the beginning and 68.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:37:14,335 INFO L168 Benchmark]: RCFGBuilder took 530.74 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 54.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:37:14,335 INFO L168 Benchmark]: BuchiAutomizer took 8019.13 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 54.2 MB in the beginning and 67.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:37:14,335 INFO L168 Benchmark]: Witness Printer took 2.40 ms. Allocated memory is still 151.0 MB. Free memory is still 67.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:37:14,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 39.8 MB in the beginning and 39.8 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 563.95 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 54.5 MB in the beginning and 71.9 MB in the end (delta: -17.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.68 ms. Allocated memory is still 104.9 MB. Free memory was 71.9 MB in the beginning and 70.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.50 ms. Allocated memory is still 104.9 MB. Free memory was 70.3 MB in the beginning and 68.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 530.74 ms. Allocated memory is still 104.9 MB. Free memory was 68.9 MB in the beginning and 54.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8019.13 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 54.2 MB in the beginning and 67.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.40 ms. Allocated memory is still 151.0 MB. Free memory is still 67.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] + -4 * i and consists of 3 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[a][i * 4 + a] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[a][a + i * 4] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 7.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 119 SDtfs, 82 SDslu, 68 SDs, 0 SdLazy, 148 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital175 mio100 ax110 hnf98 lsp86 ukn67 mio100 lsp51 div100 bol100 ite100 ukn100 eq180 hnf89 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...