./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_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:53:47,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:53:47,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:53:47,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:53:47,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:53:47,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:53:47,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:53:47,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:53:47,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:53:47,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:53:47,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:53:47,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:53:47,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:53:47,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:53:47,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:53:47,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:53:47,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:53:47,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:53:47,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:53:47,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:53:47,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:53:47,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:53:47,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:53:47,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:53:47,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:53:47,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:53:47,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:53:47,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:53:47,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:53:47,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:53:47,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:53:47,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:53:47,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:53:47,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:53:47,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:53:47,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:53:47,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:53:47,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:53:47,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:53:47,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:53:47,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:53:47,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:53:47,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:53:47,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:53:47,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:53:47,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:53:47,519 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:53:47,519 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:53:47,519 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:53:47,519 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:53:47,519 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:53:47,520 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:53:47,521 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:53:47,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:53:47,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:53:47,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:53:47,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:53:47,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:53:47,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:53:47,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:53:47,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:53:47,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:53:47,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:53:47,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:53:47,524 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:53:47,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:53:47,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:53:47,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:53:47,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:53:47,525 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:53:47,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:53:47,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:53:47,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:53:47,527 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:53:47,529 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:53:47,530 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_812e939d-8f88-4c35-babf-c905e5924c00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 997a9a1542245daddc995e1305672f611f291eda [2020-11-29 18:53:47,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:53:47,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:53:47,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:53:47,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:53:47,845 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:53:47,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2020-11-29 18:53:47,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/data/bdd5c5635/5a58e1c611b948dbb22c6cd6b1f522cf/FLAG89d01674d [2020-11-29 18:53:48,621 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:53:48,621 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2020-11-29 18:53:48,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/data/bdd5c5635/5a58e1c611b948dbb22c6cd6b1f522cf/FLAG89d01674d [2020-11-29 18:53:48,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/data/bdd5c5635/5a58e1c611b948dbb22c6cd6b1f522cf [2020-11-29 18:53:48,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:53:48,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:53:48,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:48,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:53:48,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:53:48,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:48" (1/1) ... [2020-11-29 18:53:48,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cb9f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:48, skipping insertion in model container [2020-11-29 18:53:48,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:48" (1/1) ... [2020-11-29 18:53:48,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:53:48,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:53:49,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:49,352 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:53:49,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:49,520 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:53:49,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49 WrapperNode [2020-11-29 18:53:49,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:49,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:49,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:53:49,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:53:49,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:49,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:53:49,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:53:49,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:53:49,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... [2020-11-29 18:53:49,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:53:49,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:53:49,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:53:49,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:53:49,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:53:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 18:53:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:53:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 18:53:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:53:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 18:53:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:53:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:53:50,328 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:53:50,329 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 18:53:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:50 BoogieIcfgContainer [2020-11-29 18:53:50,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:53:50,332 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:53:50,333 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:53:50,337 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:53:50,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:50,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:53:48" (1/3) ... [2020-11-29 18:53:50,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f0dbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:53:50, skipping insertion in model container [2020-11-29 18:53:50,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:50,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:49" (2/3) ... [2020-11-29 18:53:50,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25f0dbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:53:50, skipping insertion in model container [2020-11-29 18:53:50,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:50,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:50" (3/3) ... [2020-11-29 18:53:50,346 INFO L373 chiAutomizerObserver]: Analyzing ICFG memleaks_test17_2-2.i [2020-11-29 18:53:50,398 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:53:50,398 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:53:50,398 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:53:50,398 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:53:50,399 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:53:50,399 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:53:50,399 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:53:50,399 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:53:50,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-11-29 18:53:50,433 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-11-29 18:53:50,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:50,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:50,440 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:50,440 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:50,440 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:53:50,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-11-29 18:53:50,443 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-11-29 18:53:50,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:50,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:50,444 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:50,444 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:50,450 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$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 9#L-1true havoc entry_point_#t~ret44, entry_point_#t~ret45.base, entry_point_#t~ret45.offset, entry_point_#t~post46, entry_point_#t~ret47, entry_point_~i~2, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;havoc entry_point_~i~2;havoc ldv_positive_#res;havoc ldv_positive_#t~nondet4, ldv_positive_~r~1;ldv_positive_~r~1 := ldv_positive_#t~nondet4;havoc ldv_positive_#t~nondet4; 24#L520true assume !(ldv_positive_~r~1 > 0);ldv_positive_#res := 1; 11#L521true entry_point_#t~ret44 := ldv_positive_#res;entry_point_~len~0 := entry_point_#t~ret44;havoc entry_point_#t~ret44; 23#L787true assume !!(entry_point_~len~0 < 16777216); 26#L787-2true ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 3#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 27#L529true entry_point_#t~ret45.base, entry_point_#t~ret45.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret45.base, entry_point_#t~ret45.offset;havoc entry_point_#t~ret45.base, entry_point_#t~ret45.offset; 5#L789true assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;entry_point_~i~2 := 0; 12#L790-3true [2020-11-29 18:53:50,450 INFO L796 eck$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 [2020-11-29 18:53:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:50,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787569, now seen corresponding path program 1 times [2020-11-29 18:53:50,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:50,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712915375] [2020-11-29 18:53:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:50,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712915375] [2020-11-29 18:53:50,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:50,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:53:50,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695529639] [2020-11-29 18:53:50,668 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:53:50,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:50,669 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2020-11-29 18:53:50,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:50,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020748616] [2020-11-29 18:53:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:50,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:50,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:50,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:50,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:53:50,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:53:50,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:53:50,832 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-11-29 18:53:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:50,950 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-11-29 18:53:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:53:50,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2020-11-29 18:53:50,955 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 19 [2020-11-29 18:53:50,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 37 states and 46 transitions. [2020-11-29 18:53:50,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2020-11-29 18:53:50,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-11-29 18:53:50,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2020-11-29 18:53:50,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:53:50,966 INFO L691 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2020-11-29 18:53:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2020-11-29 18:53:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2020-11-29 18:53:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 18:53:50,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2020-11-29 18:53:50,997 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-29 18:53:50,998 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-29 18:53:50,998 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:53:50,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2020-11-29 18:53:51,003 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-11-29 18:53:51,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:51,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:51,005 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:51,005 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:51,005 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 [2020-11-29 18:53:51,005 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 [2020-11-29 18:53:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:51,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785647, now seen corresponding path program 1 times [2020-11-29 18:53:51,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:51,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263392875] [2020-11-29 18:53:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:51,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:51,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:51,121 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:51,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 2 times [2020-11-29 18:53:51,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:51,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035737965] [2020-11-29 18:53:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:51,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:51,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:51,158 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:51,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1509325583, now seen corresponding path program 1 times [2020-11-29 18:53:51,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:51,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574250162] [2020-11-29 18:53:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:51,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:51,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:51,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:51,568 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2020-11-29 18:53:51,755 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-11-29 18:53:51,768 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:53:51,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:53:51,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:53:51,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:53:51,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:53:51,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:51,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:53:51,770 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:53:51,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration2_Lasso [2020-11-29 18:53:51,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:53:51,770 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:53:51,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:51,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,130 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-11-29 18:53:52,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:52,907 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-29 18:53:52,964 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:53:52,968 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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) [2020-11-29 18:53:52,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:52,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:52,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:52,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:52,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:52,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:52,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:52,990 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 [2020-11-29 18:53:52,992 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:53,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,060 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 [2020-11-29 18:53:53,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:53,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:53,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:53,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:53,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:53,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:53,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:53,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:53,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:53,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,330 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:53,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:53,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:53,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:53,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:53,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:53,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:53,482 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:53,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:53,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:53,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:53,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:53,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:53,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:53,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:53,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:53,594 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:53:53,798 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-29 18:53:53,799 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_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:53,811 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 [2020-11-29 18:53:53,815 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:53:53,816 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:53:53,816 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_1, ULTIMATE.start_entry_point_~array~0.offset, ULTIMATE.start_entry_point_~i~2) = 1*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 Supporting invariants [] [2020-11-29 18:53:53,874 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2020-11-29 18:53:53,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:53:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:53,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:53:53,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:53,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:53:53,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:53,961 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:53:53,962 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-29 18:53:54,055 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. [2020-11-29 18:53:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:53:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:53:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-11-29 18:53:54,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-29 18:53:54,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:54,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-29 18:53:54,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:54,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-29 18:53:54,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:54,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2020-11-29 18:53:54,069 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-11-29 18:53:54,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 39 states and 50 transitions. [2020-11-29 18:53:54,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-29 18:53:54,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-11-29 18:53:54,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2020-11-29 18:53:54,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:53:54,076 INFO L691 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-11-29 18:53:54,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2020-11-29 18:53:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2020-11-29 18:53:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 18:53:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-11-29 18:53:54,082 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-29 18:53:54,083 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-29 18:53:54,083 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:53:54,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2020-11-29 18:53:54,084 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-29 18:53:54,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:54,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:54,085 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:54,085 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 18:53:54,086 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 [2020-11-29 18:53:54,087 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$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 263#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 271#L765-3 [2020-11-29 18:53:54,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:54,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1509325641, now seen corresponding path program 1 times [2020-11-29 18:53:54,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:54,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074472946] [2020-11-29 18:53:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:54,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:54,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074472946] [2020-11-29 18:53:54,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:54,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:53:54,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129839210] [2020-11-29 18:53:54,173 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:53:54,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:54,174 INFO L82 PathProgramCache]: Analyzing trace with hash 74532277, now seen corresponding path program 1 times [2020-11-29 18:53:54,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:54,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171604934] [2020-11-29 18:53:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:54,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:54,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:54,212 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:54,381 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-11-29 18:53:54,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:53:54,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:53:54,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:53:54,470 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-29 18:53:54,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:54,544 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-11-29 18:53:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:53:54,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2020-11-29 18:53:54,549 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2020-11-29 18:53:54,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 50 states and 62 transitions. [2020-11-29 18:53:54,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2020-11-29 18:53:54,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2020-11-29 18:53:54,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 62 transitions. [2020-11-29 18:53:54,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:53:54,551 INFO L691 BuchiCegarLoop]: Abstraction has 50 states and 62 transitions. [2020-11-29 18:53:54,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 62 transitions. [2020-11-29 18:53:54,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2020-11-29 18:53:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 18:53:54,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-11-29 18:53:54,554 INFO L714 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-11-29 18:53:54,555 INFO L594 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-11-29 18:53:54,555 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:53:54,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2020-11-29 18:53:54,558 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-29 18:53:54,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:54,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:54,559 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:54,560 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 18:53:54,560 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 [2020-11-29 18:53:54,560 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 [2020-11-29 18:53:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:54,561 INFO L82 PathProgramCache]: Analyzing trace with hash 2105583285, now seen corresponding path program 1 times [2020-11-29 18:53:54,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:54,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998141537] [2020-11-29 18:53:54,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:54,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998141537] [2020-11-29 18:53:54,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:54,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:53:54,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148312254] [2020-11-29 18:53:54,666 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:53:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:54,667 INFO L82 PathProgramCache]: Analyzing trace with hash 74532277, now seen corresponding path program 2 times [2020-11-29 18:53:54,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:54,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613913256] [2020-11-29 18:53:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:54,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:54,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:54,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:54,901 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-11-29 18:53:54,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:53:54,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:53:54,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:53:54,989 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-29 18:53:55,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:55,045 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2020-11-29 18:53:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:53:55,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2020-11-29 18:53:55,046 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-29 18:53:55,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2020-11-29 18:53:55,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-11-29 18:53:55,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-11-29 18:53:55,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2020-11-29 18:53:55,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:53:55,047 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2020-11-29 18:53:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2020-11-29 18:53:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2020-11-29 18:53:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 18:53:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-11-29 18:53:55,049 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-29 18:53:55,050 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-29 18:53:55,050 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 18:53:55,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2020-11-29 18:53:55,053 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-29 18:53:55,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:55,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:55,054 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:55,056 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 18:53:55,056 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 [2020-11-29 18:53:55,056 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 [2020-11-29 18:53:55,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:55,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1237061817, now seen corresponding path program 1 times [2020-11-29 18:53:55,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:55,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218140491] [2020-11-29 18:53:55,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:55,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:55,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:55,110 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:55,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:55,111 INFO L82 PathProgramCache]: Analyzing trace with hash 74532277, now seen corresponding path program 3 times [2020-11-29 18:53:55,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:55,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593805111] [2020-11-29 18:53:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:55,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:55,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:55,148 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:55,151 INFO L82 PathProgramCache]: Analyzing trace with hash -138745859, now seen corresponding path program 1 times [2020-11-29 18:53:55,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:55,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895932289] [2020-11-29 18:53:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:55,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:55,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:55,220 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:55,392 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-11-29 18:53:56,002 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 123 [2020-11-29 18:53:56,195 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-11-29 18:53:56,197 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:53:56,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:53:56,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:53:56,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:53:56,198 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:53:56,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:56,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:53:56,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:53:56,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration5_Lasso [2020-11-29 18:53:56,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:53:56,198 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:53:56,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,648 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-11-29 18:53:56,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:56,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:57,180 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-11-29 18:53:57,471 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-29 18:53:57,727 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:53:57,727 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:57,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:57,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:57,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:57,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:57,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:57,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:57,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:57,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:57,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:57,782 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:57,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:57,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:57,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:57,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:53:57,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:57,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:57,845 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:57,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:57,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:57,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:57,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:57,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:53:57,937 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 [2020-11-29 18:53:57,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:57,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:57,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:57,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:57,962 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 [2020-11-29 18:53:57,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:57,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:57,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:57,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:57,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:57,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:57,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:57,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:57,992 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:53:57,992 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:53:57,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,025 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-29 18:53:58,025 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 18:53:58,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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) [2020-11-29 18:53:58,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:58,109 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 [2020-11-29 18:53:58,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:58,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:58,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:58,153 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 [2020-11-29 18:53:58,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:58,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:58,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:58,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:58,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:53:58,228 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:58,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:58,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:58,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:58,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:58,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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) [2020-11-29 18:53:58,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:58,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:58,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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) [2020-11-29 18:53:58,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:58,395 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 [2020-11-29 18:53:58,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:58,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:58,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:58,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:58,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:58,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:58,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:58,478 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:53:58,528 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 18:53:58,528 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_812e939d-8f88-4c35-babf-c905e5924c00/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) [2020-11-29 18:53:58,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:58,534 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:53:58,534 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:53:58,534 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 [] [2020-11-29 18:53:58,611 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-29 18:53:58,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:58,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:53:58,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:58,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:53:58,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:58,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:58,688 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:53:58,688 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-29 18:53:58,714 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. [2020-11-29 18:53:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:53:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:53:58,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-11-29 18:53:58,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 13 letters. Loop has 5 letters. [2020-11-29 18:53:58,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:58,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 18 letters. Loop has 5 letters. [2020-11-29 18:53:58,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:58,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 13 letters. Loop has 10 letters. [2020-11-29 18:53:58,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:58,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2020-11-29 18:53:58,720 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-29 18:53:58,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 33 states and 42 transitions. [2020-11-29 18:53:58,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-11-29 18:53:58,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-11-29 18:53:58,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2020-11-29 18:53:58,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:53:58,721 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2020-11-29 18:53:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2020-11-29 18:53:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-11-29 18:53:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 18:53:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-11-29 18:53:58,723 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-11-29 18:53:58,724 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-11-29 18:53:58,724 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 18:53:58,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2020-11-29 18:53:58,724 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:53:58,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:58,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:58,725 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:58,725 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:58,725 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 [2020-11-29 18:53:58,725 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$(free_17_~array.base, free_17_~array.offset + 4 * free_17_~i~1, 4);call ULTIMATE.dealloc(free_17_#t~mem43.base, free_17_#t~mem43.offset);havoc free_17_#t~mem43.base, free_17_#t~mem43.offset; 612#L780-2 free_17_#t~post42 := free_17_~i~1;free_17_~i~1 := 1 + free_17_#t~post42;havoc free_17_#t~post42; 613#L780-3 [2020-11-29 18:53:58,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:58,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1805730393, now seen corresponding path program 1 times [2020-11-29 18:53:58,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:58,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816430254] [2020-11-29 18:53:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:53:58,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816430254] [2020-11-29 18:53:58,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:58,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:53:58,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620745336] [2020-11-29 18:53:58,790 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:53:58,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:58,790 INFO L82 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 1 times [2020-11-29 18:53:58,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:58,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648437417] [2020-11-29 18:53:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:58,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:58,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:58,799 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:58,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:53:58,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:53:58,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:53:58,828 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. cyclomatic complexity: 13 Second operand 5 states. [2020-11-29 18:53:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:58,899 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2020-11-29 18:53:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:53:58,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 90 transitions. [2020-11-29 18:53:58,901 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 12 [2020-11-29 18:53:58,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 71 states and 90 transitions. [2020-11-29 18:53:58,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2020-11-29 18:53:58,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2020-11-29 18:53:58,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 90 transitions. [2020-11-29 18:53:58,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:53:58,903 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 90 transitions. [2020-11-29 18:53:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 90 transitions. [2020-11-29 18:53:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 41. [2020-11-29 18:53:58,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 18:53:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2020-11-29 18:53:58,908 INFO L714 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-11-29 18:53:58,908 INFO L594 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-11-29 18:53:58,908 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 18:53:58,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 52 transitions. [2020-11-29 18:53:58,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:53:58,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:58,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:58,910 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:58,910 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:58,910 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$(0, 0, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~2, 4); 733#L790-2 entry_point_#t~post46 := entry_point_~i~2;entry_point_~i~2 := 1 + entry_point_#t~post46;havoc entry_point_#t~post46; 734#L790-3 assume !(entry_point_~i~2 < entry_point_~len~0); 741#L790-4 alloc_17_#in~array.base, alloc_17_#in~array.offset, alloc_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc alloc_17_#res;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset, alloc_17_#t~post38, alloc_17_#t~mem41.base, alloc_17_#t~mem41.offset, alloc_17_#t~post40, alloc_17_~array.base, alloc_17_~array.offset, alloc_17_~len, alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~i~0, alloc_17_~j~0;alloc_17_~array.base, alloc_17_~array.offset := alloc_17_#in~array.base, alloc_17_#in~array.offset;alloc_17_~len := alloc_17_#in~len;havoc alloc_17_~p~0.base, alloc_17_~p~0.offset;alloc_17_~i~0 := 0;havoc alloc_17_~j~0; 742#L765-3 assume !(alloc_17_~i~0 < alloc_17_~len); 743#L765-4 alloc_17_#res := 0; 744#L776 entry_point_#t~ret47 := alloc_17_#res;havoc entry_point_#t~ret47;free_17_#in~array.base, free_17_#in~array.offset, free_17_#in~len := entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~len~0;havoc free_17_#t~mem43.base, free_17_#t~mem43.offset, free_17_#t~post42, free_17_~array.base, free_17_~array.offset, free_17_~len, free_17_~i~1;free_17_~array.base, free_17_~array.offset := free_17_#in~array.base, free_17_#in~array.offset;free_17_~len := free_17_#in~len;havoc free_17_~i~1;free_17_~i~1 := 0; 726#L780-3 [2020-11-29 18:53:58,910 INFO L796 eck$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 [2020-11-29 18:53:58,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:58,911 INFO L82 PathProgramCache]: Analyzing trace with hash -794613143, now seen corresponding path program 1 times [2020-11-29 18:53:58,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:58,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578382436] [2020-11-29 18:53:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:53:58,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578382436] [2020-11-29 18:53:58,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:58,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:53:58,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446538057] [2020-11-29 18:53:58,947 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:53:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 2 times [2020-11-29 18:53:58,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:58,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364281941] [2020-11-29 18:53:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:58,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:58,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:58,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:59,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:53:59,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:53:59,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:53:59,036 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. cyclomatic complexity: 16 Second operand 5 states. [2020-11-29 18:53:59,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:59,091 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2020-11-29 18:53:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:53:59,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 68 transitions. [2020-11-29 18:53:59,094 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:53:59,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 55 states and 68 transitions. [2020-11-29 18:53:59,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-11-29 18:53:59,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-11-29 18:53:59,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 68 transitions. [2020-11-29 18:53:59,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:53:59,097 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 68 transitions. [2020-11-29 18:53:59,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 68 transitions. [2020-11-29 18:53:59,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 30. [2020-11-29 18:53:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 18:53:59,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-29 18:53:59,100 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 18:53:59,100 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 18:53:59,100 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 18:53:59,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2020-11-29 18:53:59,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:53:59,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:59,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:59,101 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:59,101 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:59,101 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 [2020-11-29 18:53:59,102 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 [2020-11-29 18:53:59,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:59,102 INFO L82 PathProgramCache]: Analyzing trace with hash -138686333, now seen corresponding path program 1 times [2020-11-29 18:53:59,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:59,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927991099] [2020-11-29 18:53:59,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:59,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:59,125 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 1 times [2020-11-29 18:53:59,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:59,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204580378] [2020-11-29 18:53:59,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,129 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:59,133 INFO L82 PathProgramCache]: Analyzing trace with hash -133577403, now seen corresponding path program 1 times [2020-11-29 18:53:59,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:59,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031340160] [2020-11-29 18:53:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:53:59,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031340160] [2020-11-29 18:53:59,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:59,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:53:59,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456385973] [2020-11-29 18:53:59,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:53:59,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:53:59,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:53:59,280 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-11-29 18:53:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:59,313 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2020-11-29 18:53:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:53:59,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2020-11-29 18:53:59,314 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:53:59,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2020-11-29 18:53:59,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-11-29 18:53:59,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2020-11-29 18:53:59,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2020-11-29 18:53:59,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:53:59,315 INFO L691 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-11-29 18:53:59,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2020-11-29 18:53:59,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2020-11-29 18:53:59,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 18:53:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2020-11-29 18:53:59,318 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-11-29 18:53:59,318 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-11-29 18:53:59,318 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 18:53:59,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 44 transitions. [2020-11-29 18:53:59,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:53:59,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:59,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:59,319 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] [2020-11-29 18:53:59,319 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:59,319 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 [2020-11-29 18:53:59,319 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 [2020-11-29 18:53:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:59,320 INFO L82 PathProgramCache]: Analyzing trace with hash 154066089, now seen corresponding path program 1 times [2020-11-29 18:53:59,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:59,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493159657] [2020-11-29 18:53:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,371 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:59,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:59,372 INFO L82 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 3 times [2020-11-29 18:53:59,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:59,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526226401] [2020-11-29 18:53:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,397 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:59,398 INFO L82 PathProgramCache]: Analyzing trace with hash 2028626411, now seen corresponding path program 1 times [2020-11-29 18:53:59,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:59,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203807130] [2020-11-29 18:53:59,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:59,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:59,454 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:00,251 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 158 [2020-11-29 18:54:00,436 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-29 18:54:00,438 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:54:00,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:54:00,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:54:00,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:54:00,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:54:00,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:00,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:54:00,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:54:00,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration9_Lasso [2020-11-29 18:54:00,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:54:00,439 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:54:00,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,807 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2020-11-29 18:54:00,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:00,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:01,156 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-29 18:54:01,671 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-11-29 18:54:01,811 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:54:01,811 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:01,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:01,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:01,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:01,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:01,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:01,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:01,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:01,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:01,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:01,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:01,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:01,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:01,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:01,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:01,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:01,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:01,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:01,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:01,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:01,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:01,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:01,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:01,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:02,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:02,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:02,022 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:54:02,100 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-11-29 18:54:02,101 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_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:02,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:54:02,105 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:54:02,105 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:54:02,105 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 [] [2020-11-29 18:54:02,145 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-29 18:54:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:54:02,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:54:02,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:02,205 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:54:02,205 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 44 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-11-29 18:54:02,222 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. [2020-11-29 18:54:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:54:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:54:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2020-11-29 18:54:02,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 21 letters. Loop has 2 letters. [2020-11-29 18:54:02,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:54:02,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 23 letters. Loop has 2 letters. [2020-11-29 18:54:02,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:54:02,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 21 letters. Loop has 4 letters. [2020-11-29 18:54:02,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:54:02,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2020-11-29 18:54:02,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:02,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 25 states and 30 transitions. [2020-11-29 18:54:02,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 18:54:02,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-29 18:54:02,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2020-11-29 18:54:02,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:54:02,226 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-29 18:54:02,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2020-11-29 18:54:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 18:54:02,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 18:54:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2020-11-29 18:54:02,228 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-29 18:54:02,228 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-29 18:54:02,228 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 18:54:02,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 30 transitions. [2020-11-29 18:54:02,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:02,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:02,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:02,229 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] [2020-11-29 18:54:02,229 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:54:02,229 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 [2020-11-29 18:54:02,229 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$(0, 0, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~j~0, 4); 1115#L772-2 alloc_17_#t~post40 := alloc_17_~j~0;alloc_17_~j~0 := alloc_17_#t~post40 - 1;havoc alloc_17_#t~post40; 1116#L772-3 [2020-11-29 18:54:02,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:02,229 INFO L82 PathProgramCache]: Analyzing trace with hash -688012863, now seen corresponding path program 1 times [2020-11-29 18:54:02,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:02,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207913721] [2020-11-29 18:54:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:54:02,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207913721] [2020-11-29 18:54:02,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:02,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:54:02,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770364013] [2020-11-29 18:54:02,275 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:54:02,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 2 times [2020-11-29 18:54:02,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:02,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57195254] [2020-11-29 18:54:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:02,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:02,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:02,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:02,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:02,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:54:02,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:54:02,347 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-29 18:54:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:02,370 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2020-11-29 18:54:02,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:54:02,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2020-11-29 18:54:02,371 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:54:02,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 34 transitions. [2020-11-29 18:54:02,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-11-29 18:54:02,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-29 18:54:02,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 34 transitions. [2020-11-29 18:54:02,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:54:02,372 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-11-29 18:54:02,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 34 transitions. [2020-11-29 18:54:02,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2020-11-29 18:54:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 18:54:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-11-29 18:54:02,374 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-29 18:54:02,374 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-29 18:54:02,374 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 18:54:02,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2020-11-29 18:54:02,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:02,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:02,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:02,375 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] [2020-11-29 18:54:02,375 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:54:02,375 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$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1188#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1199#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1177#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1178#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1185#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1186#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1182#L772-3 [2020-11-29 18:54:02,375 INFO L796 eck$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 [2020-11-29 18:54:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:02,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1368071233, now seen corresponding path program 1 times [2020-11-29 18:54:02,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:02,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268616524] [2020-11-29 18:54:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:54:02,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268616524] [2020-11-29 18:54:02,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861999120] [2020-11-29 18:54:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:54:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:54:02,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:54:02,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:54:02,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2020-11-29 18:54:02,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997169349] [2020-11-29 18:54:02,559 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:54:02,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:02,560 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 3 times [2020-11-29 18:54:02,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:02,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067181179] [2020-11-29 18:54:02,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:02,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:02,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:02,571 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:02,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:02,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:54:02,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:54:02,677 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 7 Second operand 6 states. [2020-11-29 18:54:02,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:02,777 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2020-11-29 18:54:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:54:02,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 45 transitions. [2020-11-29 18:54:02,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:02,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 25 states and 28 transitions. [2020-11-29 18:54:02,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 18:54:02,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-29 18:54:02,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2020-11-29 18:54:02,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:54:02,780 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-29 18:54:02,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2020-11-29 18:54:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 18:54:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 18:54:02,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-11-29 18:54:02,782 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-29 18:54:02,782 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-29 18:54:02,782 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-29 18:54:02,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2020-11-29 18:54:02,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:02,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:02,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:02,783 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] [2020-11-29 18:54:02,783 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:54:02,783 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 [2020-11-29 18:54:02,783 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 [2020-11-29 18:54:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:02,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1790773059, now seen corresponding path program 1 times [2020-11-29 18:54:02,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:02,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580348090] [2020-11-29 18:54:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:02,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580348090] [2020-11-29 18:54:02,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788917898] [2020-11-29 18:54:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:54:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:02,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:54:02,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:03,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:54:03,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-11-29 18:54:03,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243511476] [2020-11-29 18:54:03,033 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:54:03,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:03,033 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 4 times [2020-11-29 18:54:03,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:03,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098951564] [2020-11-29 18:54:03,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,043 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:03,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:54:03,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:54:03,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:54:03,135 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand 10 states. [2020-11-29 18:54:03,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:54:03,246 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2020-11-29 18:54:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:54:03,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 38 transitions. [2020-11-29 18:54:03,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:03,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 28 states and 31 transitions. [2020-11-29 18:54:03,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 18:54:03,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-29 18:54:03,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2020-11-29 18:54:03,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:54:03,248 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-11-29 18:54:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2020-11-29 18:54:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-11-29 18:54:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 18:54:03,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-11-29 18:54:03,252 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-29 18:54:03,252 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-29 18:54:03,252 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-29 18:54:03,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2020-11-29 18:54:03,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:54:03,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:54:03,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:54:03,253 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] [2020-11-29 18:54:03,253 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:54:03,253 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$(alloc_17_~p~0.base, alloc_17_~p~0.offset, alloc_17_~array.base, alloc_17_~array.offset + 4 * alloc_17_~i~0, 4); 1484#L765-2 alloc_17_#t~post38 := alloc_17_~i~0;alloc_17_~i~0 := 1 + alloc_17_#t~post38;havoc alloc_17_#t~post38; 1496#L765-3 assume !!(alloc_17_~i~0 < alloc_17_~len);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 1473#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 1474#L529-1 alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;alloc_17_~p~0.base, alloc_17_~p~0.offset := alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset;havoc alloc_17_#t~ret39.base, alloc_17_#t~ret39.offset; 1481#L767 assume alloc_17_~p~0.base == 0 && alloc_17_~p~0.offset == 0; 1482#L767-1 alloc_17_~j~0 := alloc_17_~i~0 - 1; 1478#L772-3 [2020-11-29 18:54:03,253 INFO L796 eck$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 [2020-11-29 18:54:03,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:03,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1196968511, now seen corresponding path program 2 times [2020-11-29 18:54:03,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:03,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365113839] [2020-11-29 18:54:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,327 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:03,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:03,329 INFO L82 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 5 times [2020-11-29 18:54:03,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:03,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637440619] [2020-11-29 18:54:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,342 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:03,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:03,343 INFO L82 PathProgramCache]: Analyzing trace with hash -764493823, now seen corresponding path program 1 times [2020-11-29 18:54:03,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:54:03,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837263106] [2020-11-29 18:54:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:54:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:54:03,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:54:03,415 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:54:06,017 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 249 DAG size of output: 213 [2020-11-29 18:54:06,174 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:54:06,490 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-11-29 18:54:06,490 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:54:06,498 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 18:54:06,760 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-11-29 18:54:06,761 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:54:06,764 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. [2020-11-29 18:54:06,764 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:336, output treesize:328 [2020-11-29 18:54:07,060 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-11-29 18:54:07,063 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:54:07,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:54:07,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:54:07,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:54:07,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:54:07,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:07,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:54:07,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:54:07,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test17_2-2.i_Iteration13_Lasso [2020-11-29 18:54:07,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:54:07,064 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:54:07,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,536 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2020-11-29 18:54:07,691 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-11-29 18:54:07,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:54:07,969 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-11-29 18:54:08,602 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-11-29 18:54:08,667 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:54:08,668 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:54:08,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:08,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:08,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:08,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:54:08,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:08,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:08,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:08,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:08,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:08,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:08,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:08,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:08,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:08,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:54:08,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:08,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:08,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:08,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:08,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:08,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:08,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:08,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:54:08,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:08,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:08,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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 [2020-11-29 18:54:08,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:08,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:08,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:08,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:08,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:08,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:08,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:08,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:09,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:09,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:09,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:09,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:09,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:09,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,294 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/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) [2020-11-29 18:54:09,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:09,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:09,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,449 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 [2020-11-29 18:54:09,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:09,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:09,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:54:09,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:54:09,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:54:09,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:54:09,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:54:09,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:54:09,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:54:09,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:54:09,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:54:09,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:54:09,565 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:54:09,627 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-11-29 18:54:09,628 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_812e939d-8f88-4c35-babf-c905e5924c00/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:54:09,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:54:09,632 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:54:09,633 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:54:09,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_4, ULTIMATE.start_alloc_17_~j~0) = 1*v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_4 + 8*ULTIMATE.start_alloc_17_~j~0 Supporting invariants [] [2020-11-29 18:54:09,722 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-11-29 18:54:09,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:54:09,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:54:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:09,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:54:09,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:54:09,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:54:09,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:54:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:54:09,829 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 [2020-11-29 18:54:09,829 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-29 18:54:09,882 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. [2020-11-29 18:54:09,883 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 [2020-11-29 18:54:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 18:54:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-11-29 18:54:09,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 25 letters. Loop has 2 letters. [2020-11-29 18:54:09,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:54:09,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 27 letters. Loop has 2 letters. [2020-11-29 18:54:09,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:54:09,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 25 letters. Loop has 4 letters. [2020-11-29 18:54:09,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:54:09,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2020-11-29 18:54:09,885 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:54:09,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2020-11-29 18:54:09,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:54:09,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:54:09,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:54:09,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:54:09,886 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:54:09,886 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:54:09,886 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:54:09,886 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-29 18:54:09,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:54:09,886 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:54:09,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:54:09,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:54:09 BoogieIcfgContainer [2020-11-29 18:54:09,892 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:54:09,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:54:09,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:54:09,892 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:54:09,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:50" (3/4) ... [2020-11-29 18:54:09,897 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:54:09,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:54:09,899 INFO L168 Benchmark]: Toolchain (without parser) took 21112.81 ms. Allocated memory was 107.0 MB in the beginning and 310.4 MB in the end (delta: 203.4 MB). Free memory was 79.1 MB in the beginning and 186.4 MB in the end (delta: -107.3 MB). Peak memory consumption was 95.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:09,899 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 107.0 MB. Free memory is still 63.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:54:09,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.74 ms. Allocated memory is still 107.0 MB. Free memory was 79.0 MB in the beginning and 58.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:09,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.26 ms. Allocated memory is still 107.0 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:54:09,901 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 107.0 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:09,901 INFO L168 Benchmark]: RCFGBuilder took 716.40 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 54.5 MB in the beginning and 105.9 MB in the end (delta: -51.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:09,902 INFO L168 Benchmark]: BuchiAutomizer took 19559.64 ms. Allocated memory was 142.6 MB in the beginning and 310.4 MB in the end (delta: 167.8 MB). Free memory was 105.4 MB in the beginning and 186.4 MB in the end (delta: -81.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:09,902 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 310.4 MB. Free memory is still 186.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:54:09,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 107.0 MB. Free memory is still 63.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 733.74 ms. Allocated memory is still 107.0 MB. Free memory was 79.0 MB in the beginning and 58.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.26 ms. Allocated memory is still 107.0 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 107.0 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 716.40 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 54.5 MB in the beginning and 105.9 MB in the end (delta: -51.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 19559.64 ms. Allocated memory was 142.6 MB in the beginning and 310.4 MB in the end (delta: 167.8 MB). Free memory was 105.4 MB in the beginning and 186.4 MB in the end (delta: -81.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.43 ms. Allocated memory is still 310.4 MB. Free memory is still 186.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #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 unknown-#length-unknown[array] + -1 * array + -4 * i 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 unknown-#length-unknown[array] + 8 * j 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 18.0s. 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: 72ms 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...