./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 997a9a1542245daddc995e1305672f611f291eda .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:12,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:12,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:12,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:12,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:12,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:12,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:12,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:12,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:12,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:12,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:12,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:12,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:12,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:12,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:12,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:12,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:12,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:12,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:12,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:12,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:12,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:12,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:12,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:12,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:12,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:12,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:12,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:12,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:12,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:12,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:12,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:12,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:12,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:12,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:12,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:12,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:12,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:12,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:12,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:12,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:12,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 02:57:13,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:13,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:13,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:13,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:13,011 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:13,011 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:13,011 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:13,011 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:13,012 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:13,012 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:13,013 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:13,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:13,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:13,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:13,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:13,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:13,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:13,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:13,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:13,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:13,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:13,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:13,016 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:13,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:13,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:13,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:13,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:13,017 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:13,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:13,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:13,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:13,018 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:13,019 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:13,019 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_3954012c-06da-41ed-a872-2c309d7ce826/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 997a9a1542245daddc995e1305672f611f291eda [2020-11-28 02:57:13,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:13,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:13,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:13,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:13,348 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:13,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2020-11-28 02:57:13,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/data/333c2a140/f5c7c600da924016ac206c8e340665b4/FLAG852875840 [2020-11-28 02:57:14,005 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:14,006 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2020-11-28 02:57:14,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/data/333c2a140/f5c7c600da924016ac206c8e340665b4/FLAG852875840 [2020-11-28 02:57:14,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/data/333c2a140/f5c7c600da924016ac206c8e340665b4 [2020-11-28 02:57:14,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:14,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:14,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:14,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:14,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:14,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:14" (1/1) ... [2020-11-28 02:57:14,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4193af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:14, skipping insertion in model container [2020-11-28 02:57:14,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:14" (1/1) ... [2020-11-28 02:57:14,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:14,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:14,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:14,810 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:14,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:15,014 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:15,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15 WrapperNode [2020-11-28 02:57:15,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:15,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:15,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:15,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:15,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:15,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:15,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:15,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:15,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... [2020-11-28 02:57:15,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:15,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:15,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:15,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:15,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 02:57:15,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 02:57:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:15,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 02:57:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 02:57:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:15,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:15,757 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:15,757 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-28 02:57:15,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:15 BoogieIcfgContainer [2020-11-28 02:57:15,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:15,760 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:15,760 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:15,765 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:15,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:15,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:14" (1/3) ... [2020-11-28 02:57:15,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77244653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:15, skipping insertion in model container [2020-11-28 02:57:15,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:15,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:15" (2/3) ... [2020-11-28 02:57:15,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77244653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:15, skipping insertion in model container [2020-11-28 02:57:15,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:15,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:15" (3/3) ... [2020-11-28 02:57:15,771 INFO L373 chiAutomizerObserver]: Analyzing ICFG memleaks_test17_2-2.i [2020-11-28 02:57:15,834 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:15,834 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:15,834 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:15,835 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:15,835 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:15,835 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:15,835 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:15,835 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:15,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-11-28 02:57:15,880 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-11-28 02:57:15,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:15,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:15,887 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:15,887 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:15,887 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:15,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-11-28 02:57:15,894 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-11-28 02:57:15,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:15,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:15,895 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:15,895 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:15,901 INFO L794 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 9#L-1true havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 24#L520true assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 11#L521true entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 23#L787true assume !!(entry_point_~len~0 < 16777216); 26#L787-2true ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 3#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 27#L529true entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 5#L789true assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 12#L790-3true [2020-11-28 02:57:15,901 INFO L796 eck$LassoCheckResult]: Loop: 12#L790-3true assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 10#L790-2true entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 12#L790-3true [2020-11-28 02:57:15,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787569, now seen corresponding path program 1 times [2020-11-28 02:57:15,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:15,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319680701] [2020-11-28 02:57:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:16,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319680701] [2020-11-28 02:57:16,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:16,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:16,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064107848] [2020-11-28 02:57:16,224 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:16,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:16,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2020-11-28 02:57:16,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:16,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036169678] [2020-11-28 02:57:16,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:16,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:16,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:16,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:16,407 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-11-28 02:57:16,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:16,516 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-11-28 02:57:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:16,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2020-11-28 02:57:16,520 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 19 [2020-11-28 02:57:16,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 37 states and 46 transitions. [2020-11-28 02:57:16,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2020-11-28 02:57:16,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-11-28 02:57:16,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2020-11-28 02:57:16,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:16,527 INFO L691 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2020-11-28 02:57:16,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2020-11-28 02:57:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2020-11-28 02:57:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 02:57:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2020-11-28 02:57:16,556 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-28 02:57:16,556 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-28 02:57:16,556 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:16,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2020-11-28 02:57:16,560 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-11-28 02:57:16,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:16,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:16,562 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:16,562 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:16,562 INFO L794 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 100#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 101#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 103#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 104#L787 assume !!(entry_point_~len~0 < 16777216); 113#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 89#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 90#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 93#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 94#L790-3 [2020-11-28 02:57:16,562 INFO L796 eck$LassoCheckResult]: Loop: 94#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 102#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 94#L790-3 [2020-11-28 02:57:16,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:16,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785647, now seen corresponding path program 1 times [2020-11-28 02:57:16,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:16,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532053669] [2020-11-28 02:57:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:16,614 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 2 times [2020-11-28 02:57:16,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:16,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394545479] [2020-11-28 02:57:16,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1509325583, now seen corresponding path program 1 times [2020-11-28 02:57:16,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:16,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889780377] [2020-11-28 02:57:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:16,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:16,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:17,082 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-11-28 02:57:17,244 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-11-28 02:57:17,255 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:17,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:17,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:17,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:17,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:17,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:17,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:17,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:17,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration2_Lasso [2020-11-28 02:57:17,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:17,262 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:17,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,741 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-11-28 02:57:17,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:17,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:18,505 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-28 02:57:18,573 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:18,581 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:18,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:18,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:18,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:18,607 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:18,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:18,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:18,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:18,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:18,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:18,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:18,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:18,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:18,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:18,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:18,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:18,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:18,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:18,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:18,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:18,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:18,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:18,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:18,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:18,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:18,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:18,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:18,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:18,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:18,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:18,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:18,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:18,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:18,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:18,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:18,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:18,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:19,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:19,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:19,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:19,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:19,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:19,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:19,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:19,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:19,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:19,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:19,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:19,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:19,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:19,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:19,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:19,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:19,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:19,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:19,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:19,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:19,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:19,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:19,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:19,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:19,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:19,337 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 02:57:19,338 INFO L444 ModelExtractionUtils]: 8 out of 43 variables were initially zero. Simplification set additionally 31 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:19,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:19,350 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:19,351 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:19,351 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~array~0.offset, ULTIMATE.start_entry_point_~i~2, v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_1) = -1*ULTIMATE.start_entry_point_~array~0.offset - 4*ULTIMATE.start_entry_point_~i~2 + 1*v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_1 Supporting invariants [] [2020-11-28 02:57:19,411 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2020-11-28 02:57:19,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:19,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:19,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:19,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:57:19,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:19,504 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:57:19,505 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 02:57:19,589 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 54 states and 71 transitions. Complement of second has 7 states. [2020-11-28 02:57:19,589 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 [2020-11-28 02:57:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:57:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-11-28 02:57:19,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-28 02:57:19,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:19,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-28 02:57:19,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:19,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-28 02:57:19,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:19,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2020-11-28 02:57:19,596 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-11-28 02:57:19,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 39 states and 50 transitions. [2020-11-28 02:57:19,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-28 02:57:19,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-11-28 02:57:19,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2020-11-28 02:57:19,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:19,599 INFO L691 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-11-28 02:57:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2020-11-28 02:57:19,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2020-11-28 02:57:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-28 02:57:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-11-28 02:57:19,602 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-28 02:57:19,602 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-28 02:57:19,602 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:57:19,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2020-11-28 02:57:19,603 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-28 02:57:19,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:19,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:19,604 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:19,604 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:19,604 INFO L794 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 266#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 267#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 268#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 269#L787 assume !!(entry_point_~len~0 < 16777216); 277#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 253#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 254#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 257#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 258#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 270#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 271#L765-3 [2020-11-28 02:57:19,605 INFO L796 eck$LassoCheckResult]: Loop: 271#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 255#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 256#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 261#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 263#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 271#L765-3 [2020-11-28 02:57:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:19,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1509325641, now seen corresponding path program 1 times [2020-11-28 02:57:19,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:19,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967097663] [2020-11-28 02:57:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:19,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967097663] [2020-11-28 02:57:19,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:19,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:19,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450722792] [2020-11-28 02:57:19,677 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:19,677 INFO L82 PathProgramCache]: Analyzing trace with hash 74532277, now seen corresponding path program 1 times [2020-11-28 02:57:19,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:19,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949210740] [2020-11-28 02:57:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:19,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:19,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:19,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:19,970 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-11-28 02:57:20,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:20,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:20,059 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-28 02:57:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:20,141 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-11-28 02:57:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:20,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2020-11-28 02:57:20,146 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-11-28 02:57:20,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 50 states and 62 transitions. [2020-11-28 02:57:20,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2020-11-28 02:57:20,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2020-11-28 02:57:20,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 62 transitions. [2020-11-28 02:57:20,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:20,148 INFO L691 BuchiCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-11-28 02:57:20,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 62 transitions. [2020-11-28 02:57:20,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2020-11-28 02:57:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-28 02:57:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-11-28 02:57:20,152 INFO L714 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-11-28 02:57:20,152 INFO L594 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-11-28 02:57:20,152 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 02:57:20,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2020-11-28 02:57:20,153 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-28 02:57:20,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:20,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:20,153 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:20,157 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:20,158 INFO L794 eck$LassoCheckResult]: Stem: 366#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 352#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 353#L520 assume ldv_positive_~r~1 > 0;ldv_positive_#res := ldv_positive_~r~1; 369#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 367#L787 assume !!(entry_point_~len~0 < 16777216); 368#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 373#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 371#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 345#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 346#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 359#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 360#L765-3 [2020-11-28 02:57:20,158 INFO L796 eck$LassoCheckResult]: Loop: 360#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 343#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 344#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 349#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 351#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 360#L765-3 [2020-11-28 02:57:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:20,158 INFO L82 PathProgramCache]: Analyzing trace with hash 2105583285, now seen corresponding path program 1 times [2020-11-28 02:57:20,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:20,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135327421] [2020-11-28 02:57:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:20,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135327421] [2020-11-28 02:57:20,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:20,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:20,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110501937] [2020-11-28 02:57:20,233 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:20,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:20,233 INFO L82 PathProgramCache]: Analyzing trace with hash 74532277, now seen corresponding path program 2 times [2020-11-28 02:57:20,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:20,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052686785] [2020-11-28 02:57:20,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,265 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:20,446 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-11-28 02:57:20,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:20,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:20,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:20,548 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-28 02:57:20,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:20,603 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2020-11-28 02:57:20,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:20,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2020-11-28 02:57:20,605 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-28 02:57:20,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2020-11-28 02:57:20,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-11-28 02:57:20,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-11-28 02:57:20,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2020-11-28 02:57:20,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:20,606 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2020-11-28 02:57:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2020-11-28 02:57:20,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2020-11-28 02:57:20,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-28 02:57:20,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-11-28 02:57:20,608 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-28 02:57:20,608 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-28 02:57:20,608 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 02:57:20,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2020-11-28 02:57:20,609 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-28 02:57:20,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:20,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:20,614 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:20,617 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:20,617 INFO L794 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 433#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 434#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 435#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 436#L787 assume !!(entry_point_~len~0 < 16777216); 444#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 420#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 421#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 424#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 425#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 431#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 432#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 437#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 438#L765-3 [2020-11-28 02:57:20,617 INFO L796 eck$LassoCheckResult]: Loop: 438#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 422#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 423#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 428#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 430#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 438#L765-3 [2020-11-28 02:57:20,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:20,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1237061817, now seen corresponding path program 1 times [2020-11-28 02:57:20,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:20,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719739699] [2020-11-28 02:57:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,662 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,672 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:20,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:20,673 INFO L82 PathProgramCache]: Analyzing trace with hash 74532277, now seen corresponding path program 3 times [2020-11-28 02:57:20,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:20,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396477826] [2020-11-28 02:57:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,702 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:20,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:20,702 INFO L82 PathProgramCache]: Analyzing trace with hash -138745859, now seen corresponding path program 1 times [2020-11-28 02:57:20,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:20,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819921243] [2020-11-28 02:57:20,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:20,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:20,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:20,914 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-11-28 02:57:21,564 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 123 [2020-11-28 02:57:21,783 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-11-28 02:57:21,786 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:21,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:21,786 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:21,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:21,786 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:21,786 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:21,786 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:21,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:21,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration5_Lasso [2020-11-28 02:57:21,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:21,786 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:21,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:21,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,257 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-11-28 02:57:22,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:22,767 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-11-28 02:57:23,070 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-28 02:57:23,342 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:23,342 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:23,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:23,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:23,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:23,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:23,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:23,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:23,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:23,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:23,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:23,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:23,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:23,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:23,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:23,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,588 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 [2020-11-28 02:57:23,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:23,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:23,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,623 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 02:57:23,623 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:57:23,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,656 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-28 02:57:23,656 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-28 02:57:23,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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) [2020-11-28 02:57:23,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:23,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:23,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:23,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:23,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:23,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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) [2020-11-28 02:57:23,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:23,849 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:23,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:23,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:23,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:23,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:23,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:23,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:23,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:23,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:23,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:23,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:23,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:23,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:24,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:24,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:24,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:24,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:24,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:24,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:24,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:24,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:24,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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) [2020-11-28 02:57:24,072 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 [2020-11-28 02:57:24,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:24,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:24,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:24,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:24,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:24,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:24,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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) [2020-11-28 02:57:24,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:24,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:24,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:24,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:24,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:24,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:24,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:24,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:24,223 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-28 02:57:24,223 INFO L444 ModelExtractionUtils]: 24 out of 58 variables were initially zero. Simplification set additionally 31 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:24,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:24,228 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:24,229 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:24,229 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_alloc_17_~i~0, ULTIMATE.start_alloc_17_~len) = -1*ULTIMATE.start_alloc_17_~i~0 + 1*ULTIMATE.start_alloc_17_~len Supporting invariants [] [2020-11-28 02:57:24,294 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 02:57:24,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:24,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:24,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:24,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:57:24,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:24,369 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:57:24,369 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 02:57:24,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 45 states and 58 transitions. Complement of second has 6 states. [2020-11-28 02:57:24,402 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 [2020-11-28 02:57:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:57:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-11-28 02:57:24,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 13 letters. Loop has 5 letters. [2020-11-28 02:57:24,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:24,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 18 letters. Loop has 5 letters. [2020-11-28 02:57:24,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:24,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 13 letters. Loop has 10 letters. [2020-11-28 02:57:24,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:24,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2020-11-28 02:57:24,405 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-28 02:57:24,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 33 states and 42 transitions. [2020-11-28 02:57:24,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-11-28 02:57:24,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-11-28 02:57:24,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2020-11-28 02:57:24,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:24,406 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2020-11-28 02:57:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2020-11-28 02:57:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-11-28 02:57:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 02:57:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-11-28 02:57:24,409 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-11-28 02:57:24,409 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-11-28 02:57:24,409 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 02:57:24,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2020-11-28 02:57:24,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 02:57:24,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:24,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:24,415 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:24,415 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:24,415 INFO L794 eck$LassoCheckResult]: Stem: 631#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 618#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 619#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 622#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 623#L787 assume !!(entry_point_~len~0 < 16777216); 632#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 604#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 605#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 610#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 611#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 620#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 621#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 624#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 625#L765-3 assume !(alloc_17_~i~0 < alloc_17_~len); 626#L765-4 alloc_17_#res := 0; 627#L776 entry_point_#t~ret47 := alloc_17_#res;havoc entry_point_#t~ret47;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 613#L780-3 [2020-11-28 02:57:24,415 INFO L796 eck$LassoCheckResult]: Loop: 613#L780-3 assume !!(free_17_~i~1 < free_17_~len);call free_17_#t~mem43.base, free_17_#t~mem43.offset := read~$Pointer$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 612#L780-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 613#L780-3 [2020-11-28 02:57:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1805730393, now seen corresponding path program 1 times [2020-11-28 02:57:24,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653778602] [2020-11-28 02:57:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:24,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653778602] [2020-11-28 02:57:24,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:24,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:24,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879434667] [2020-11-28 02:57:24,505 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:24,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,506 INFO L82 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 1 times [2020-11-28 02:57:24,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500805937] [2020-11-28 02:57:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,513 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:24,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:24,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:24,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:24,545 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand 5 states. [2020-11-28 02:57:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:24,632 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2020-11-28 02:57:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:24,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 90 transitions. [2020-11-28 02:57:24,633 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2020-11-28 02:57:24,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 71 states and 90 transitions. [2020-11-28 02:57:24,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2020-11-28 02:57:24,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2020-11-28 02:57:24,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 90 transitions. [2020-11-28 02:57:24,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:24,635 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 90 transitions. [2020-11-28 02:57:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 90 transitions. [2020-11-28 02:57:24,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 41. [2020-11-28 02:57:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 02:57:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2020-11-28 02:57:24,639 INFO L714 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-11-28 02:57:24,639 INFO L594 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-11-28 02:57:24,639 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 02:57:24,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2020-11-28 02:57:24,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 02:57:24,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:24,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:24,641 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:24,641 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:24,641 INFO L794 eck$LassoCheckResult]: Stem: 748#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 731#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 732#L520 assume ldv_positive_~r~1 > 0;ldv_positive_#res := ldv_positive_~r~1; 751#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 749#L787 assume !!(entry_point_~len~0 < 16777216); 750#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 717#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 718#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 723#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 724#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 733#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 734#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 741#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 742#L765-3 assume !(alloc_17_~i~0 < alloc_17_~len); 743#L765-4 alloc_17_#res := 0; 744#L776 entry_point_#t~ret47 := alloc_17_#res;havoc entry_point_#t~ret47;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 726#L780-3 [2020-11-28 02:57:24,641 INFO L796 eck$LassoCheckResult]: Loop: 726#L780-3 assume !!(free_17_~i~1 < free_17_~len);call free_17_#t~mem43.base, free_17_#t~mem43.offset := read~$Pointer$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 725#L780-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 726#L780-3 [2020-11-28 02:57:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,642 INFO L82 PathProgramCache]: Analyzing trace with hash -794613143, now seen corresponding path program 1 times [2020-11-28 02:57:24,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513376975] [2020-11-28 02:57:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:24,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513376975] [2020-11-28 02:57:24,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:24,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:24,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672160862] [2020-11-28 02:57:24,702 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,703 INFO L82 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 2 times [2020-11-28 02:57:24,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453629661] [2020-11-28 02:57:24,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,709 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:24,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:24,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:24,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:24,757 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. cyclomatic complexity: 16 Second operand 5 states. [2020-11-28 02:57:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:24,817 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2020-11-28 02:57:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:24,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 68 transitions. [2020-11-28 02:57:24,820 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-28 02:57:24,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 55 states and 68 transitions. [2020-11-28 02:57:24,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-11-28 02:57:24,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-11-28 02:57:24,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 68 transitions. [2020-11-28 02:57:24,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:24,821 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 68 transitions. [2020-11-28 02:57:24,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 68 transitions. [2020-11-28 02:57:24,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 30. [2020-11-28 02:57:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 02:57:24,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-28 02:57:24,824 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-28 02:57:24,824 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-28 02:57:24,824 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-28 02:57:24,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2020-11-28 02:57:24,825 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 02:57:24,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:24,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:24,825 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:24,826 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:24,826 INFO L794 eck$LassoCheckResult]: Stem: 853#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 841#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 842#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 843#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 844#L787 assume !!(entry_point_~len~0 < 16777216); 852#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 825#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 826#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 831#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 832#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 839#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 840#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 845#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 846#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 827#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 828#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 835#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 836#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 850#L772-3 [2020-11-28 02:57:24,826 INFO L796 eck$LassoCheckResult]: Loop: 850#L772-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 849#L772-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 850#L772-3 [2020-11-28 02:57:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash -138686333, now seen corresponding path program 1 times [2020-11-28 02:57:24,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619981653] [2020-11-28 02:57:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,846 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:24,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,852 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 1 times [2020-11-28 02:57:24,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312620909] [2020-11-28 02:57:24,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:24,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:24,860 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:24,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,861 INFO L82 PathProgramCache]: Analyzing trace with hash -133577403, now seen corresponding path program 1 times [2020-11-28 02:57:24,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826561780] [2020-11-28 02:57:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:24,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:24,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826561780] [2020-11-28 02:57:24,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:24,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:24,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991916980] [2020-11-28 02:57:24,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:24,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:24,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:24,963 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-11-28 02:57:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:24,992 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2020-11-28 02:57:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:24,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2020-11-28 02:57:24,993 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-28 02:57:24,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2020-11-28 02:57:24,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-11-28 02:57:24,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2020-11-28 02:57:24,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2020-11-28 02:57:24,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:24,994 INFO L691 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-11-28 02:57:24,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2020-11-28 02:57:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2020-11-28 02:57:24,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 02:57:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2020-11-28 02:57:24,996 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-11-28 02:57:24,997 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-11-28 02:57:24,997 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-28 02:57:24,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 44 transitions. [2020-11-28 02:57:24,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 02:57:24,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:24,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:24,998 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:24,998 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:24,998 INFO L794 eck$LassoCheckResult]: Stem: 940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 926#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 927#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 930#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 931#L787 assume !!(entry_point_~len~0 < 16777216); 941#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 912#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 913#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 918#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 919#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 928#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 929#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 932#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 933#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 914#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 915#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 922#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 923#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 938#L772-3 assume !(alloc_17_~j~0 >= 0); 939#L772-4 alloc_17_#res := 3; 935#L776 entry_point_#t~ret47 := alloc_17_#res;havoc entry_point_#t~ret47;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 921#L780-3 [2020-11-28 02:57:24,998 INFO L796 eck$LassoCheckResult]: Loop: 921#L780-3 assume !!(free_17_~i~1 < free_17_~len);call free_17_#t~mem43.base, free_17_#t~mem43.offset := read~$Pointer$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 920#L780-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 921#L780-3 [2020-11-28 02:57:24,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:24,999 INFO L82 PathProgramCache]: Analyzing trace with hash 154066089, now seen corresponding path program 1 times [2020-11-28 02:57:24,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:24,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382847193] [2020-11-28 02:57:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:25,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:25,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:25,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:25,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:25,027 INFO L82 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 3 times [2020-11-28 02:57:25,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:25,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50018493] [2020-11-28 02:57:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:25,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:25,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:25,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:25,035 INFO L82 PathProgramCache]: Analyzing trace with hash 2028626411, now seen corresponding path program 1 times [2020-11-28 02:57:25,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:25,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24209740] [2020-11-28 02:57:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:25,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:25,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:25,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:25,862 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 158 [2020-11-28 02:57:26,079 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-28 02:57:26,081 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:26,081 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:26,081 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:26,081 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:26,081 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:26,081 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:26,081 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:26,082 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:26,082 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration9_Lasso [2020-11-28 02:57:26,082 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:26,082 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:26,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,395 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-11-28 02:57:26,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:26,887 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-28 02:57:27,375 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-28 02:57:27,487 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:27,487 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:27,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:27,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:27,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:27,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:27,557 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 [2020-11-28 02:57:27,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:27,589 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 [2020-11-28 02:57:27,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:27,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:27,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:27,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:27,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:27,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:27,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:27,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:27,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:27,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:27,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:27,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:27,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:27,788 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-11-28 02:57:27,788 INFO L444 ModelExtractionUtils]: 12 out of 49 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:27,790 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:27,792 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:27,792 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:27,792 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_free_17_~i~1, ULTIMATE.start_free_17_~len) = -1*ULTIMATE.start_free_17_~i~1 + 1*ULTIMATE.start_free_17_~len Supporting invariants [] [2020-11-28 02:57:27,835 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 02:57:27,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:27,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:27,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:27,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:57:27,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:27,894 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:57:27,895 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 44 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-11-28 02:57:27,916 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 44 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 37 states and 47 transitions. Complement of second has 4 states. [2020-11-28 02:57:27,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:57:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-11-28 02:57:27,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 21 letters. Loop has 2 letters. [2020-11-28 02:57:27,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:27,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 23 letters. Loop has 2 letters. [2020-11-28 02:57:27,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:27,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 21 letters. Loop has 4 letters. [2020-11-28 02:57:27,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:27,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2020-11-28 02:57:27,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:27,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 25 states and 30 transitions. [2020-11-28 02:57:27,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-28 02:57:27,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-28 02:57:27,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2020-11-28 02:57:27,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:27,920 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-28 02:57:27,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2020-11-28 02:57:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-28 02:57:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 02:57:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2020-11-28 02:57:27,921 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-28 02:57:27,922 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-28 02:57:27,922 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-28 02:57:27,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 30 transitions. [2020-11-28 02:57:27,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:27,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:27,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:27,923 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:27,923 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:27,923 INFO L794 eck$LassoCheckResult]: Stem: 1129#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1123#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 1124#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 1127#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 1128#L787 assume !!(entry_point_~len~0 < 16777216); 1130#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1109#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1110#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 1117#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1118#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1125#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 1126#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1131#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1132#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1113#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1114#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1121#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1122#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1133#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1111#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1112#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1119#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1120#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1116#L772-3 [2020-11-28 02:57:27,923 INFO L796 eck$LassoCheckResult]: Loop: 1116#L772-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 1115#L772-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 1116#L772-3 [2020-11-28 02:57:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash -688012863, now seen corresponding path program 1 times [2020-11-28 02:57:27,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:27,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494980393] [2020-11-28 02:57:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:27,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494980393] [2020-11-28 02:57:27,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:27,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:57:27,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454770576] [2020-11-28 02:57:27,983 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:27,983 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 2 times [2020-11-28 02:57:27,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:27,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359567002] [2020-11-28 02:57:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:27,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:27,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:27,992 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:28,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:28,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:28,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:28,067 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 02:57:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:28,093 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2020-11-28 02:57:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:28,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2020-11-28 02:57:28,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 02:57:28,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 34 transitions. [2020-11-28 02:57:28,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-11-28 02:57:28,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-28 02:57:28,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 34 transitions. [2020-11-28 02:57:28,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:28,095 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-11-28 02:57:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 34 transitions. [2020-11-28 02:57:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2020-11-28 02:57:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 02:57:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-11-28 02:57:28,097 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-28 02:57:28,097 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-28 02:57:28,097 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-28 02:57:28,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2020-11-28 02:57:28,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:28,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:28,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:28,099 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:28,099 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:28,099 INFO L794 eck$LassoCheckResult]: Stem: 1196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1189#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 1190#L520 assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 1193#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 1194#L787 assume !!(entry_point_~len~0 < 16777216); 1197#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1175#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1176#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 1183#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1184#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1191#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 1192#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1195#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1198#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1179#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1180#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1187#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1188#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1199#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1177#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1178#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1185#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1186#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1182#L772-3 [2020-11-28 02:57:28,099 INFO L796 eck$LassoCheckResult]: Loop: 1182#L772-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 1181#L772-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 1182#L772-3 [2020-11-28 02:57:28,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:28,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1368071233, now seen corresponding path program 1 times [2020-11-28 02:57:28,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:28,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674835652] [2020-11-28 02:57:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:28,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674835652] [2020-11-28 02:57:28,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124679144] [2020-11-28 02:57:28,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:28,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 02:57:28,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:28,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:57:28,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2020-11-28 02:57:28,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908326897] [2020-11-28 02:57:28,308 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:28,308 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 3 times [2020-11-28 02:57:28,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:28,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645832585] [2020-11-28 02:57:28,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:28,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:28,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:28,317 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:28,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:28,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:28,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:57:28,405 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 7 Second operand 6 states. [2020-11-28 02:57:28,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:28,483 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2020-11-28 02:57:28,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:28,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 45 transitions. [2020-11-28 02:57:28,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:28,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 25 states and 28 transitions. [2020-11-28 02:57:28,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-28 02:57:28,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-28 02:57:28,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2020-11-28 02:57:28,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:28,487 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-28 02:57:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2020-11-28 02:57:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-28 02:57:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 02:57:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-11-28 02:57:28,489 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-28 02:57:28,489 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-28 02:57:28,489 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-28 02:57:28,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2020-11-28 02:57:28,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:28,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:28,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:28,491 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:28,491 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:28,491 INFO L794 eck$LassoCheckResult]: Stem: 1348#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1340#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 1341#L520 assume ldv_positive_~r~1 > 0;ldv_positive_#res := ldv_positive_~r~1; 1344#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 1345#L787 assume !!(entry_point_~len~0 < 16777216); 1346#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1326#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1327#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 1334#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1335#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1342#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 1343#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1347#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1349#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1330#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1331#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1338#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1339#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1350#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1328#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1329#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1336#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1337#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1333#L772-3 [2020-11-28 02:57:28,491 INFO L796 eck$LassoCheckResult]: Loop: 1333#L772-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 1332#L772-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 1333#L772-3 [2020-11-28 02:57:28,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:28,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1790773059, now seen corresponding path program 1 times [2020-11-28 02:57:28,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:28,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543987551] [2020-11-28 02:57:28,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:28,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543987551] [2020-11-28 02:57:28,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520599310] [2020-11-28 02:57:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:28,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:57:28,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:28,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:57:28,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-11-28 02:57:28,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895175481] [2020-11-28 02:57:28,779 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:28,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:28,780 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 4 times [2020-11-28 02:57:28,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:28,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347310053] [2020-11-28 02:57:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:28,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:28,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:28,788 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:28,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:28,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 02:57:28,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:57:28,898 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand 10 states. [2020-11-28 02:57:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:29,026 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2020-11-28 02:57:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:57:29,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 38 transitions. [2020-11-28 02:57:29,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:29,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 28 states and 31 transitions. [2020-11-28 02:57:29,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-28 02:57:29,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-28 02:57:29,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2020-11-28 02:57:29,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:29,028 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-11-28 02:57:29,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2020-11-28 02:57:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-11-28 02:57:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 02:57:29,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-11-28 02:57:29,031 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-28 02:57:29,031 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-28 02:57:29,031 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-28 02:57:29,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2020-11-28 02:57:29,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 02:57:29,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:29,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:29,032 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:29,032 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:57:29,033 INFO L794 eck$LassoCheckResult]: Stem: 1491#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 1485#L-1 havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 1486#L520 assume ldv_positive_~r~1 > 0;ldv_positive_#res := ldv_positive_~r~1; 1489#L521 entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 1490#L787 assume !!(entry_point_~len~0 < 16777216); 1492#L787-2 ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1471#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1472#L529 entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 1479#L789 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 1480#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1487#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 1488#L790-3 assume !!(entry_point_~i~2 < entry_point_~len~0);call write~$Pointer$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 1493#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 1497#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 1494#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 1495#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1475#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 1476#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1483#L767 assume !(alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0);call write~$Pointer$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1484#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1496#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1473#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1474#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1481#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1482#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1478#L772-3 [2020-11-28 02:57:29,033 INFO L796 eck$LassoCheckResult]: Loop: 1478#L772-3 assume !!(alloc_17_~j~0 >= 0);call alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset := read~$Pointer$(alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4);call ULTIMATE.dealloc(alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset);havoc alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset;call write~$Pointer$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 1477#L772-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 1478#L772-3 [2020-11-28 02:57:29,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:29,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1196968511, now seen corresponding path program 2 times [2020-11-28 02:57:29,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:29,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858201537] [2020-11-28 02:57:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:29,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:29,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:29,104 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:29,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:29,107 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 5 times [2020-11-28 02:57:29,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:29,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084732757] [2020-11-28 02:57:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:29,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:29,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:29,115 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:29,116 INFO L82 PathProgramCache]: Analyzing trace with hash -764493823, now seen corresponding path program 1 times [2020-11-28 02:57:29,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:29,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637294808] [2020-11-28 02:57:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:29,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:29,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:29,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:31,986 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 249 DAG size of output: 213 [2020-11-28 02:57:32,055 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:32,366 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-11-28 02:57:32,366 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:32,373 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:32,738 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-11-28 02:57:32,738 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:32,740 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:32,740 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:336, output treesize:328 [2020-11-28 02:57:32,999 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-11-28 02:57:33,002 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:33,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:33,002 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:33,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:33,002 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:33,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:33,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:33,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:33,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration13_Lasso [2020-11-28 02:57:33,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:33,002 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:33,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,439 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2020-11-28 02:57:33,575 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-11-28 02:57:33,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:33,804 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-11-28 02:57:34,352 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-11-28 02:57:34,408 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:34,409 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,417 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:34,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:34,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:34,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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) [2020-11-28 02:57:34,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:34,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:34,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:34,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:34,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:34,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:34,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:34,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:34,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:34,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:34,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:34,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:34,990 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:35,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:35,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:35,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:35,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:35,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:35,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:35,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:35,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:35,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:35,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:35,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:35,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:35,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:35,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:35,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:35,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:35,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:35,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:35,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:35,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:35,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:35,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:35,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:35,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:35,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:35,068 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:35,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:35,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:35,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:35,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:35,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:35,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:35,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:35,116 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:35,166 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-11-28 02:57:35,166 INFO L444 ModelExtractionUtils]: 10 out of 46 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3954012c-06da-41ed-a872-2c309d7ce826/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 [2020-11-28 02:57:35,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:35,170 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:35,170 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:35,170 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_alloc_17_~j~0, v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_4) = 8*ULTIMATE.start_alloc_17_~j~0 + 1*v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_4 Supporting invariants [] [2020-11-28 02:57:35,215 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 02:57:35,217 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:35,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:35,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:35,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:35,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:57:35,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:35,327 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 02:57:35,328 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-28 02:57:35,380 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 29 states and 33 transitions. Complement of second has 5 states. [2020-11-28 02:57:35,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-11-28 02:57:35,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 25 letters. Loop has 2 letters. [2020-11-28 02:57:35,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:35,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 27 letters. Loop has 2 letters. [2020-11-28 02:57:35,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:35,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 25 letters. Loop has 4 letters. [2020-11-28 02:57:35,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:35,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2020-11-28 02:57:35,383 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:35,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2020-11-28 02:57:35,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:57:35,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:57:35,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:57:35,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:35,383 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:35,383 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:35,383 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:35,383 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-28 02:57:35,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:35,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:35,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:57:35,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:57:35 BoogieIcfgContainer [2020-11-28 02:57:35,389 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:57:35,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:35,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:35,393 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:35,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:15" (3/4) ... [2020-11-28 02:57:35,397 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:57:35,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:35,398 INFO L168 Benchmark]: Toolchain (without parser) took 21121.60 ms. Allocated memory was 83.9 MB in the beginning and 272.6 MB in the end (delta: 188.7 MB). Free memory was 46.7 MB in the beginning and 139.4 MB in the end (delta: -92.7 MB). Peak memory consumption was 98.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,398 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 83.9 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:35,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.01 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 46.6 MB in the beginning and 66.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.88 ms. Allocated memory is still 107.0 MB. Free memory was 66.3 MB in the beginning and 64.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,399 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 107.0 MB. Free memory was 64.2 MB in the beginning and 62.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,399 INFO L168 Benchmark]: RCFGBuilder took 654.80 ms. Allocated memory is still 107.0 MB. Free memory was 62.6 MB in the beginning and 78.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,400 INFO L168 Benchmark]: BuchiAutomizer took 19629.02 ms. Allocated memory was 107.0 MB in the beginning and 272.6 MB in the end (delta: 165.7 MB). Free memory was 78.7 MB in the beginning and 140.5 MB in the end (delta: -61.8 MB). Peak memory consumption was 103.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,400 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 272.6 MB. Free memory was 140.5 MB in the beginning and 139.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:35,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 83.9 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 737.01 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 46.6 MB in the beginning and 66.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.88 ms. Allocated memory is still 107.0 MB. Free memory was 66.3 MB in the beginning and 64.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.89 ms. Allocated memory is still 107.0 MB. Free memory was 64.2 MB in the beginning and 62.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 654.80 ms. Allocated memory is still 107.0 MB. Free memory was 62.6 MB in the beginning and 78.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 19629.02 ms. Allocated memory was 107.0 MB in the beginning and 272.6 MB in the end (delta: 165.7 MB). Free memory was 78.7 MB in the beginning and 140.5 MB in the end (delta: -61.8 MB). Peak memory consumption was 103.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.49 ms. Allocated memory is still 272.6 MB. Free memory was 140.5 MB in the beginning and 139.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (9 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * array + -4 * i + unknown-#length-unknown[array] and consists of 4 locations. One deterministic module has affine ranking function -1 * i + len and consists of 4 locations. One deterministic module has affine ranking function -1 * i + len and consists of 3 locations. One deterministic module has affine ranking function 8 * j + unknown-#length-unknown[array] and consists of 4 locations. 9 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.5s and 14 iterations. TraceHistogramMax:2. Analysis of lassos took 18.1s. Construction of modules took 0.4s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 125 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 6. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 396 SDtfs, 469 SDslu, 564 SDs, 0 SdLazy, 291 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU8 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital316 mio100 ax110 hnf100 lsp83 ukn60 mio100 lsp57 div100 bol100 ite100 ukn100 eq189 hnf90 smp94 dnf104 smp97 tf100 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 79ms VariablesStem: 7 VariablesLoop: 6 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...