./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.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_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 1a7013a4cfa859e3e95189f90d363983a25fcd0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:05:33,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:05:33,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:05:33,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:05:33,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:05:33,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:05:33,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:05:33,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:05:33,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:05:33,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:05:33,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:05:33,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:05:33,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:05:33,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:05:33,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:05:33,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:05:33,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:05:33,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:05:33,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:05:33,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:05:33,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:05:33,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:05:33,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:05:33,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:05:33,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:05:33,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:05:33,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:05:33,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:05:33,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:05:33,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:05:33,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:05:33,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:05:33,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:05:33,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:05:33,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:05:33,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:05:33,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:05:33,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:05:33,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:05:33,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:05:33,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:05:33,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:05:33,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:05:33,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:05:33,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:05:33,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:05:33,910 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:05:33,911 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:05:33,911 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:05:33,911 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:05:33,912 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:05:33,912 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:05:33,914 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:05:33,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:05:33,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:05:33,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:05:33,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:05:33,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:05:33,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:05:33,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:05:33,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:05:33,917 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:05:33,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:05:33,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:05:33,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:05:33,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:05:33,918 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:05:33,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:05:33,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:05:33,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:05:33,919 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:05:33,923 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:05:33,924 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_e8235679-839c-49a2-bb47-6fb036151b39/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a7013a4cfa859e3e95189f90d363983a25fcd0e [2020-11-29 19:05:34,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:05:34,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:05:34,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:05:34,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:05:34,328 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:05:34,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2020-11-29 19:05:34,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/data/b7e19e6e7/4f7c026b14734c8ab58e59a427e3d33f/FLAGccfd3cfd2 [2020-11-29 19:05:35,094 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:05:35,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2020-11-29 19:05:35,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/data/b7e19e6e7/4f7c026b14734c8ab58e59a427e3d33f/FLAGccfd3cfd2 [2020-11-29 19:05:35,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/data/b7e19e6e7/4f7c026b14734c8ab58e59a427e3d33f [2020-11-29 19:05:35,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:05:35,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:05:35,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:05:35,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:05:35,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:05:35,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:05:35" (1/1) ... [2020-11-29 19:05:35,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2890321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:35, skipping insertion in model container [2020-11-29 19:05:35,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:05:35" (1/1) ... [2020-11-29 19:05:35,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:05:35,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:05:35,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:05:35,887 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:05:35,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:05:36,046 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:05:36,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36 WrapperNode [2020-11-29 19:05:36,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:05:36,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:05:36,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:05:36,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:05:36,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:05:36,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:05:36,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:05:36,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:05:36,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... [2020-11-29 19:05:36,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:05:36,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:05:36,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:05:36,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:05:36,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:05:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:05:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:05:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:05:36,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:05:36,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:05:36,802 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:05:36,807 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:05:36,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:36 BoogieIcfgContainer [2020-11-29 19:05:36,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:05:36,811 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:05:36,818 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:05:36,823 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:05:36,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:05:36,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:05:35" (1/3) ... [2020-11-29 19:05:36,827 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35c630d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:05:36, skipping insertion in model container [2020-11-29 19:05:36,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:05:36,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:36" (2/3) ... [2020-11-29 19:05:36,828 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35c630d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:05:36, skipping insertion in model container [2020-11-29 19:05:36,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:05:36,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:36" (3/3) ... [2020-11-29 19:05:36,831 INFO L373 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2020-11-29 19:05:36,913 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:05:36,914 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:05:36,914 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:05:36,914 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:05:36,914 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:05:36,915 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:05:36,915 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:05:36,915 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:05:36,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 19:05:36,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 19:05:36,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:36,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:36,983 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:05:36,984 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:05:36,984 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:05:37,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 19:05:37,006 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 19:05:37,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:37,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:37,007 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:05:37,007 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:05:37,020 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 3#L569true [2020-11-29 19:05:37,021 INFO L796 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 8#L564true goto; 4#L567true call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 11#L564-1true assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 6#L566true assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 3#L569true [2020-11-29 19:05:37,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:37,031 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 19:05:37,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:37,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863357335] [2020-11-29 19:05:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:37,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:37,421 INFO L82 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2020-11-29 19:05:37,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:37,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115562166] [2020-11-29 19:05:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:37,465 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 19:05:37,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115562166] [2020-11-29 19:05:37,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:05:37,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 19:05:37,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878318968] [2020-11-29 19:05:37,475 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:05:37,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:05:37,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:05:37,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:05:37,501 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-29 19:05:37,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:05:37,508 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2020-11-29 19:05:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:05:37,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-11-29 19:05:37,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 19:05:37,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-11-29 19:05:37,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:05:37,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-29 19:05:37,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-11-29 19:05:37,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:05:37,521 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:05:37,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-11-29 19:05:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 19:05:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 19:05:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-29 19:05:37,564 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:05:37,564 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:05:37,564 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:05:37,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-29 19:05:37,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 19:05:37,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:37,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:37,567 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:05:37,567 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:05:37,567 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 39#L569 [2020-11-29 19:05:37,568 INFO L796 eck$LassoCheckResult]: Loop: 39#L569 goto; 42#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 46#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6; 40#L564 goto; 41#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 44#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 45#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 39#L569 [2020-11-29 19:05:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:37,569 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-29 19:05:37,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:37,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745660537] [2020-11-29 19:05:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,681 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:37,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:37,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2020-11-29 19:05:37,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:37,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091330807] [2020-11-29 19:05:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,758 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:37,764 INFO L82 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2020-11-29 19:05:37,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:37,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736210108] [2020-11-29 19:05:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:37,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:37,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:38,183 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-11-29 19:05:38,507 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-11-29 19:05:39,520 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2020-11-29 19:05:39,889 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-29 19:05:39,913 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:05:39,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:05:39,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:05:39,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:05:39,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:05:39,922 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:39,922 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:05:39,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:05:39,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2020-11-29 19:05:39,923 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:05:39,923 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:05:39,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:39,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:39,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:39,985 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 19:05:40,008 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 19:05:40,014 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 19:05:40,019 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 19:05:40,024 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 19:05:40,029 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 19:05:40,034 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 19:05:40,039 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 19:05:40,044 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 19:05:40,049 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 19:05:40,053 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 19:05:40,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:40,062 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 19:05:40,974 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2020-11-29 19:05:41,274 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-11-29 19:05:41,276 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 19:05:41,283 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 19:05:41,286 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 19:05:41,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:41,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:41,303 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 19:05:41,703 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-11-29 19:05:42,368 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:05:42,374 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:42,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:42,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:42,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:42,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:42,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:42,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:42,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:42,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:42,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:42,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:42,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:42,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:42,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:42,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:42,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,729 INFO L402 nArgumentSynthesizer]: A total of 0 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 19:05:42,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:42,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:42,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:42,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,826 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 19:05:42,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:42,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:42,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:42,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:42,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:42,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:42,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:42,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:42,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:42,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:42,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:42,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:42,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:42,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:42,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:42,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:43,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:43,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:43,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:43,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:43,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:43,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:43,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:43,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:43,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:43,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:43,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:43,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:43,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:43,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:43,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:43,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:43,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:43,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:43,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:43,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:43,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:43,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:43,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:43,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:43,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:43,237 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:43,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:43,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:43,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:43,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:43,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:43,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:43,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:43,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:43,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:43,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:43,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:43,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:43,364 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:05:43,440 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 19:05:43,440 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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) [2020-11-29 19:05:43,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:43,450 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:05:43,450 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:05:43,451 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1 + 1 Supporting invariants [] [2020-11-29 19:05:43,826 INFO L297 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2020-11-29 19:05:43,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:05:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:43,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:05:43,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:43,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:05:43,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:44,109 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2020-11-29 19:05:44,116 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:44,129 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:44,129 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:44,129 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-11-29 19:05:44,157 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 19:05:44,161 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:05:44,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-11-29 19:05:44,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 20 states and 27 transitions. Complement of second has 6 states. [2020-11-29 19:05:44,244 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 19:05:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 19:05:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-29 19:05:44,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2020-11-29 19:05:44,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:44,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2020-11-29 19:05:44,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:44,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2020-11-29 19:05:44,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:44,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2020-11-29 19:05:44,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:44,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2020-11-29 19:05:44,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 19:05:44,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-29 19:05:44,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-11-29 19:05:44,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:05:44,261 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-11-29 19:05:44,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-11-29 19:05:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-11-29 19:05:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:05:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-11-29 19:05:44,264 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:05:44,264 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:05:44,264 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:05:44,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-11-29 19:05:44,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:44,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:44,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:44,268 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 19:05:44,268 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:05:44,268 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 285#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 286#L569 goto; 288#L560 [2020-11-29 19:05:44,269 INFO L796 eck$LassoCheckResult]: Loop: 288#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 294#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 295#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 288#L560 [2020-11-29 19:05:44,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:44,269 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-11-29 19:05:44,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:44,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043361190] [2020-11-29 19:05:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:44,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:44,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:44,391 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:44,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:44,392 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2020-11-29 19:05:44,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:44,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257103578] [2020-11-29 19:05:44,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:44,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:44,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:44,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:44,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:44,442 INFO L82 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2020-11-29 19:05:44,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:44,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881455986] [2020-11-29 19:05:44,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:44,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:44,520 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:44,525 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:45,492 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 95 [2020-11-29 19:05:45,837 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 19:05:45,841 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:05:45,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:05:45,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:05:45,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:05:45,842 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:05:45,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:45,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:05:45,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:05:45,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2020-11-29 19:05:45,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:05:45,842 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:05:45,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:45,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:45,883 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 19:05:45,891 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 19:05:45,900 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 19:05:45,904 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 19:05:45,908 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 19:05:45,912 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 19:05:45,920 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 19:05:45,924 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 19:05:45,928 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 19:05:45,935 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 19:05:45,938 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 19:05:45,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:45,947 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 19:05:46,552 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-11-29 19:05:46,685 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-11-29 19:05:46,686 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 19:05:46,689 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 19:05:46,692 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 19:05:46,694 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 19:05:46,711 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 19:05:47,450 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:05:47,450 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:47,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:47,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:47,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:47,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:47,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:47,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:47,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:47,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:47,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,843 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 19:05:47,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:47,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:47,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:47,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:47,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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) [2020-11-29 19:05:47,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:47,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:47,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:47,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:47,955 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:47,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:47,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:47,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:47,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:47,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:47,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:47,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:47,992 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/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 19:05:48,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:48,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:48,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,314 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:48,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,352 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,352 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:48,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:48,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:48,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:48,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:48,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:48,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:48,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:48,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:48,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:05:48,465 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 19:05:48,466 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:48,468 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:48,470 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:05:48,471 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:05:48,471 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2 Supporting invariants [] [2020-11-29 19:05:48,600 INFO L297 tatePredicateManager]: 32 out of 32 supporting invariants were superfluous and have been removed [2020-11-29 19:05:48,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:05:48,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:05:48,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:48,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:05:48,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:48,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:05:48,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:48,792 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:48,792 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 63 [2020-11-29 19:05:48,798 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 19:05:48,806 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 19:05:48,824 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:48,883 INFO L625 ElimStorePlain]: treesize reduction 59, result has 39.2 percent of original size [2020-11-29 19:05:48,883 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:48,884 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2020-11-29 19:05:48,915 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 19:05:48,916 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:05:48,916 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-11-29 19:05:48,951 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 34 states and 43 transitions. Complement of second has 7 states. [2020-11-29 19:05:48,952 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 19:05:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:05:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-11-29 19:05:48,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-29 19:05:48,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:48,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-29 19:05:48,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:48,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2020-11-29 19:05:48,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:48,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2020-11-29 19:05:48,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:48,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2020-11-29 19:05:48,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 19:05:48,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 19:05:48,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-11-29 19:05:48,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:05:48,958 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-11-29 19:05:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-11-29 19:05:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2020-11-29 19:05:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 19:05:48,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2020-11-29 19:05:48,961 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-11-29 19:05:48,961 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-11-29 19:05:48,961 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:05:48,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2020-11-29 19:05:48,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:48,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:48,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:48,965 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:05:48,965 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:05:48,965 INFO L794 eck$LassoCheckResult]: Stem: 512#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 505#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 506#L569 goto; 507#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 515#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6; 503#L564 goto; 504#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 510#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 511#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 516#L569 goto; 517#L560 [2020-11-29 19:05:48,965 INFO L796 eck$LassoCheckResult]: Loop: 517#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 513#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 514#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 517#L560 [2020-11-29 19:05:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:48,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2020-11-29 19:05:48,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:48,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505566468] [2020-11-29 19:05:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:48,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:49,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:49,069 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:49,069 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2020-11-29 19:05:49,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:49,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320641273] [2020-11-29 19:05:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:49,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:49,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:49,093 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:49,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:49,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2020-11-29 19:05:49,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:49,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281825053] [2020-11-29 19:05:49,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:05:49,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281825053] [2020-11-29 19:05:49,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739683940] [2020-11-29 19:05:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:05:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:49,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 19:05:49,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:49,393 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 16 [2020-11-29 19:05:49,395 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:49,401 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:49,404 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:49,404 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:9 [2020-11-29 19:05:49,522 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:49,522 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 39 [2020-11-29 19:05:49,525 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:49,543 INFO L625 ElimStorePlain]: treesize reduction 20, result has 50.0 percent of original size [2020-11-29 19:05:49,548 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:49,548 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:11 [2020-11-29 19:05:49,573 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:49,573 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2020-11-29 19:05:49,576 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 19:05:49,578 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 19:05:49,579 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-11-29 19:05:49,604 INFO L625 ElimStorePlain]: treesize reduction 17, result has 15.0 percent of original size [2020-11-29 19:05:49,605 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:49,605 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2020-11-29 19:05:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:05:49,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:05:49,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-11-29 19:05:49,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375090862] [2020-11-29 19:05:49,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:05:49,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 19:05:49,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:05:49,740 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 10 states. [2020-11-29 19:05:49,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:05:49,910 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2020-11-29 19:05:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 19:05:49,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2020-11-29 19:05:49,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:49,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2020-11-29 19:05:49,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 19:05:49,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 19:05:49,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2020-11-29 19:05:49,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:05:49,912 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-11-29 19:05:49,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2020-11-29 19:05:49,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2020-11-29 19:05:49,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:05:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-11-29 19:05:49,914 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-11-29 19:05:49,914 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-11-29 19:05:49,914 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:05:49,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-11-29 19:05:49,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:49,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:49,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:49,916 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:05:49,916 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:05:49,917 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 622#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 623#L569 goto; 626#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 633#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 634#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 624#L564 goto; 625#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 628#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 629#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 635#L569 goto; 636#L560 [2020-11-29 19:05:49,917 INFO L796 eck$LassoCheckResult]: Loop: 636#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 631#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 632#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 636#L560 [2020-11-29 19:05:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:49,917 INFO L82 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2020-11-29 19:05:49,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:49,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082775339] [2020-11-29 19:05:49,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:05:49,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082775339] [2020-11-29 19:05:49,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:05:49,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:05:49,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280041823] [2020-11-29 19:05:49,990 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:05:49,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:49,991 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2020-11-29 19:05:49,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:49,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928410713] [2020-11-29 19:05:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:49,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,004 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:50,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:05:50,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:05:50,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:05:50,163 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-29 19:05:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:05:50,202 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-11-29 19:05:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:05:50,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-11-29 19:05:50,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:50,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2020-11-29 19:05:50,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 19:05:50,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 19:05:50,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-11-29 19:05:50,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:05:50,206 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-29 19:05:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-11-29 19:05:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 19:05:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 19:05:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-29 19:05:50,208 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-29 19:05:50,208 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-29 19:05:50,208 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 19:05:50,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2020-11-29 19:05:50,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:50,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:50,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:50,209 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:05:50,210 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:05:50,210 INFO L794 eck$LassoCheckResult]: Stem: 669#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 662#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 663#L569 goto; 666#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 674#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 675#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 668#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 679#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 678#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 664#L564 goto; 665#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 670#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 671#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 676#L569 goto; 677#L560 [2020-11-29 19:05:50,210 INFO L796 eck$LassoCheckResult]: Loop: 677#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 672#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 673#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 677#L560 [2020-11-29 19:05:50,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:50,210 INFO L82 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2020-11-29 19:05:50,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:50,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356462835] [2020-11-29 19:05:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,320 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:50,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:50,324 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2020-11-29 19:05:50,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:50,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451781704] [2020-11-29 19:05:50,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:50,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2020-11-29 19:05:50,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:50,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250377352] [2020-11-29 19:05:50,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:50,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:50,463 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:52,532 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 199 DAG size of output: 147 [2020-11-29 19:05:53,283 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-11-29 19:05:53,287 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:05:53,287 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:05:53,287 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:05:53,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:05:53,287 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:05:53,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:53,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:05:53,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:05:53,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2020-11-29 19:05:53,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:05:53,288 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:05:53,292 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 19:05:53,313 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 19:05:53,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:53,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:53,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:53,352 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 19:05:53,356 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 19:05:53,364 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 19:05:53,368 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 19:05:53,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:53,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:53,380 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 19:05:54,192 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2020-11-29 19:05:54,363 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-11-29 19:05:54,365 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 19:05:54,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:54,371 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 19:05:54,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:54,376 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 19:05:54,379 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 19:05:54,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:54,384 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 19:05:54,387 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 19:05:54,664 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-11-29 19:05:55,126 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:05:55,127 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,257 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 19:05:55,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,315 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 [2020-11-29 19:05:55,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,377 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:55,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:55,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:55,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:55,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:55,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:55,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:55,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:05:55,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:55,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:55,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 19:05:55,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:55,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:55,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:55,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:55,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:55,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:55,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:05:56,005 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 19:05:56,005 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:05:56,008 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:56,012 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:05:56,012 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:05:56,012 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3 Supporting invariants [] [2020-11-29 19:05:56,285 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2020-11-29 19:05:56,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:05:56,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:05:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:56,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:05:56,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:56,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:05:56,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:56,421 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:56,421 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 63 [2020-11-29 19:05:56,426 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 19:05:56,428 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 19:05:56,439 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:56,472 INFO L625 ElimStorePlain]: treesize reduction 59, result has 39.2 percent of original size [2020-11-29 19:05:56,472 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:56,472 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2020-11-29 19:05:56,510 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 19:05:56,511 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:05:56,511 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-29 19:05:56,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 30 states and 35 transitions. Complement of second has 7 states. [2020-11-29 19:05:56,538 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 19:05:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:05:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-11-29 19:05:56,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-29 19:05:56,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:56,539 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 19:05:56,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:56,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:05:56,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:56,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:05:56,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:56,646 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:56,646 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 63 [2020-11-29 19:05:56,649 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 19:05:56,651 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 19:05:56,654 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:56,683 INFO L625 ElimStorePlain]: treesize reduction 59, result has 39.2 percent of original size [2020-11-29 19:05:56,683 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:56,683 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2020-11-29 19:05:56,701 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 19:05:56,702 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:05:56,702 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-29 19:05:56,747 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 51 states and 59 transitions. Complement of second has 9 states. [2020-11-29 19:05:56,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 19:05:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:05:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-11-29 19:05:56,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-29 19:05:56,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:56,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-29 19:05:56,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:56,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-29 19:05:56,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:05:56,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2020-11-29 19:05:56,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:56,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2020-11-29 19:05:56,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 19:05:56,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 19:05:56,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2020-11-29 19:05:56,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:05:56,752 INFO L691 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2020-11-29 19:05:56,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2020-11-29 19:05:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-11-29 19:05:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 19:05:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-11-29 19:05:56,756 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-11-29 19:05:56,756 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-11-29 19:05:56,756 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 19:05:56,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2020-11-29 19:05:56,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:05:56,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:56,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:56,758 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:05:56,758 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:05:56,758 INFO L794 eck$LassoCheckResult]: Stem: 1070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1063#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 1064#L569 goto; 1065#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1087#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1080#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1081#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1095#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1094#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 1093#L564 goto; 1091#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1068#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1069#L566 assume 0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2);havoc f_#t~mem14; 1084#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1086#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1083#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 1082#L569 goto; 1078#L560 [2020-11-29 19:05:56,758 INFO L796 eck$LassoCheckResult]: Loop: 1078#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1072#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem7;havoc f_#t~mem6;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1073#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1078#L560 [2020-11-29 19:05:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:56,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2020-11-29 19:05:56,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:56,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846469881] [2020-11-29 19:05:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:05:56,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846469881] [2020-11-29 19:05:56,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975851837] [2020-11-29 19:05:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8235679-839c-49a2-bb47-6fb036151b39/bin/uautomizer/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:05:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:56,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 19:05:56,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:05:57,004 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 16 [2020-11-29 19:05:57,006 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,026 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:57,246 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-29 19:05:57,247 INFO L350 Elim1Store]: treesize reduction 44, result has 72.5 percent of original size [2020-11-29 19:05:57,247 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 130 [2020-11-29 19:05:57,248 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,342 INFO L625 ElimStorePlain]: treesize reduction 64, result has 54.9 percent of original size [2020-11-29 19:05:57,358 INFO L545 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,359 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:138, output treesize:19 [2020-11-29 19:05:57,379 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-11-29 19:05:57,380 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,397 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:57,398 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,398 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-11-29 19:05:57,440 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-11-29 19:05:57,441 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,447 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:57,448 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:05:57,448 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-11-29 19:05:57,528 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-11-29 19:05:57,529 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,541 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:57,542 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:05:57,542 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-11-29 19:05:57,577 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-11-29 19:05:57,579 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:05:57,588 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:05:57,588 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2020-11-29 19:05:57,593 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:05:57,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:05:57,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-11-29 19:05:57,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235048668] [2020-11-29 19:05:57,594 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:05:57,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:57,594 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 5 times [2020-11-29 19:05:57,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:57,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82415618] [2020-11-29 19:05:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,606 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:57,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:05:57,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 19:05:57,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-29 19:05:57,707 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand 11 states. [2020-11-29 19:05:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:05:57,918 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2020-11-29 19:05:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 19:05:57,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 65 transitions. [2020-11-29 19:05:57,922 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:05:57,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2020-11-29 19:05:57,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:05:57,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:05:57,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:05:57,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:05:57,923 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:05:57,923 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:05:57,923 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:05:57,923 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 19:05:57,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:05:57,923 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:05:57,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:05:57,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:05:57 BoogieIcfgContainer [2020-11-29 19:05:57,930 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:05:57,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:05:57,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:05:57,931 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:05:57,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:36" (3/4) ... [2020-11-29 19:05:57,934 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:05:57,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:05:57,936 INFO L168 Benchmark]: Toolchain (without parser) took 22539.18 ms. Allocated memory was 88.1 MB in the beginning and 209.7 MB in the end (delta: 121.6 MB). Free memory was 57.2 MB in the beginning and 70.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 108.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:57,936 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 88.1 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:05:57,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.95 ms. Allocated memory is still 88.1 MB. Free memory was 57.0 MB in the beginning and 55.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:57,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.36 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 54.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:05:57,937 INFO L168 Benchmark]: Boogie Preprocessor took 68.22 ms. Allocated memory is still 88.1 MB. Free memory was 54.3 MB in the beginning and 53.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:57,938 INFO L168 Benchmark]: RCFGBuilder took 611.50 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 36.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:57,938 INFO L168 Benchmark]: BuchiAutomizer took 21118.79 ms. Allocated memory was 88.1 MB in the beginning and 209.7 MB in the end (delta: 121.6 MB). Free memory was 36.7 MB in the beginning and 70.5 MB in the end (delta: -33.8 MB). Peak memory consumption was 89.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:05:57,939 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 209.7 MB. Free memory is still 70.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:05:57,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 88.1 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 648.95 ms. Allocated memory is still 88.1 MB. Free memory was 57.0 MB in the beginning and 55.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.36 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 54.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.22 ms. Allocated memory is still 88.1 MB. Free memory was 54.3 MB in the beginning and 53.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 611.50 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 36.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 21118.79 ms. Allocated memory was 88.1 MB in the beginning and 209.7 MB in the end (delta: 121.6 MB). Free memory was 36.7 MB in the beginning and 70.5 MB in the end (delta: -33.8 MB). Peak memory consumption was 89.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 209.7 MB. Free memory is still 70.5 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[j][j] + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[k_ref][k_ref] + -1 * unknown-#memory_int-unknown[i][i] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 21.0s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 19.1s. Construction of modules took 0.3s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 79 SDtfs, 93 SDslu, 165 SDs, 0 SdLazy, 177 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital874 mio100 ax103 hnf99 lsp94 ukn41 mio100 lsp36 div102 bol100 ite100 ukn100 eq186 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 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...