./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cf112a0fbbdfc44a3bb289156f3ed9f3cdfb386d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 20:10:31,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:10:31,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:10:31,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:10:31,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:10:31,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:10:31,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:10:31,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:10:31,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:10:31,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:10:31,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:10:31,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:10:31,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:10:31,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:10:31,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:10:31,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:10:31,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:10:31,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:10:31,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:10:31,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:10:31,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:10:31,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:10:31,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:10:31,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:10:31,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:10:31,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:10:31,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:10:31,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:10:31,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:10:31,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:10:31,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:10:31,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:10:31,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:10:31,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:10:31,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:10:31,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:10:31,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:10:31,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:10:31,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:10:31,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:10:31,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:10:31,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 20:10:31,845 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:10:31,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:10:31,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:10:31,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:10:31,847 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:10:31,847 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:10:31,847 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:10:31,847 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:10:31,848 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:10:31,848 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:10:31,848 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:10:31,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:10:31,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:10:31,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:10:31,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:10:31,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:10:31,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:10:31,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:10:31,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:10:31,850 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:10:31,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:10:31,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:10:31,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:10:31,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:10:31,850 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:10:31,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:10:31,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:10:31,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:10:31,851 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:10:31,852 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:10:31,852 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_599c132c-4659-40f8-bfb1-d448d08d5306/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf112a0fbbdfc44a3bb289156f3ed9f3cdfb386d [2020-11-29 20:10:32,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:10:32,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:10:32,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:10:32,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:10:32,177 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:10:32,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i [2020-11-29 20:10:32,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/data/91d9fd318/bbe8aeb972a74f2db9fa1cab65dd9c4f/FLAG38791da69 [2020-11-29 20:10:32,788 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:10:32,789 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i [2020-11-29 20:10:32,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/data/91d9fd318/bbe8aeb972a74f2db9fa1cab65dd9c4f/FLAG38791da69 [2020-11-29 20:10:33,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/data/91d9fd318/bbe8aeb972a74f2db9fa1cab65dd9c4f [2020-11-29 20:10:33,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:10:33,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:10:33,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:10:33,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:10:33,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:10:33,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e977e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33, skipping insertion in model container [2020-11-29 20:10:33,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:10:33,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:10:33,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:10:33,548 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:10:33,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:10:33,640 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:10:33,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33 WrapperNode [2020-11-29 20:10:33,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:10:33,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:10:33,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:10:33,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:10:33,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:10:33,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:10:33,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:10:33,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:10:33,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... [2020-11-29 20:10:33,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:10:33,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:10:33,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:10:33,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:10:33,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:10:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:10:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:10:34,122 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:10:34,134 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 20:10:34,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:10:34 BoogieIcfgContainer [2020-11-29 20:10:34,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:10:34,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:10:34,139 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:10:34,150 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:10:34,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:10:34,151 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:10:33" (1/3) ... [2020-11-29 20:10:34,152 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44fa7f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:10:34, skipping insertion in model container [2020-11-29 20:10:34,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:10:34,153 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:10:33" (2/3) ... [2020-11-29 20:10:34,153 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44fa7f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:10:34, skipping insertion in model container [2020-11-29 20:10:34,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:10:34,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:10:34" (3/3) ... [2020-11-29 20:10:34,155 INFO L373 chiAutomizerObserver]: Analyzing ICFG subseq-alloca-1.i [2020-11-29 20:10:34,207 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:10:34,209 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:10:34,209 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:10:34,213 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:10:34,213 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:10:34,214 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:10:34,214 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:10:34,214 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:10:34,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 20:10:34,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:10:34,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:10:34,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:10:34,256 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:10:34,256 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 20:10:34,256 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:10:34,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 20:10:34,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:10:34,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:10:34,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:10:34,260 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:10:34,260 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 20:10:34,269 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 11#L563true assume !(main_~length1~0 < 1); 15#L563-2true assume !(main_~length2~0 < 1); 8#L566-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 6#L551-5true [2020-11-29 20:10:34,270 INFO L796 eck$LassoCheckResult]: Loop: 6#L551-5true call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 16#L551-1true assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 3#L551-3true assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 12#L552true assume subseq_#t~mem5 == subseq_#t~mem6;havoc subseq_#t~mem6;havoc subseq_#t~mem5;subseq_#t~post7.base, subseq_#t~post7.offset := subseq_~ps~0.base, subseq_~ps~0.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_#t~post7.base, 1 + subseq_#t~post7.offset;havoc subseq_#t~post7.base, subseq_#t~post7.offset; 17#L552-2true subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 6#L551-5true [2020-11-29 20:10:34,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:34,281 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-29 20:10:34,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:34,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833666609] [2020-11-29 20:10:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:34,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:34,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:34,540 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:34,546 INFO L82 PathProgramCache]: Analyzing trace with hash 47815647, now seen corresponding path program 1 times [2020-11-29 20:10:34,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:34,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431080298] [2020-11-29 20:10:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:34,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:34,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:34,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:34,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1594114490, now seen corresponding path program 1 times [2020-11-29 20:10:34,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:34,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749623654] [2020-11-29 20:10:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:34,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:34,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:34,687 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:34,911 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-11-29 20:10:35,366 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-11-29 20:10:35,509 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-29 20:10:35,526 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:10:35,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:10:35,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:10:35,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:10:35,527 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:10:35,527 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:35,527 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:10:35,527 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:10:35,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-1.i_Iteration1_Lasso [2020-11-29 20:10:35,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:10:35,528 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:10:35,556 INFO 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 20:10:35,564 INFO 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 20:10:35,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:35,571 INFO 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 20:10:35,574 INFO 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 20:10:35,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:35,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:36,121 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-11-29 20:10:36,358 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-11-29 20:10:36,359 INFO 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 20:10:36,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:36,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:36,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:36,381 INFO 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 20:10:36,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:36,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:36,392 INFO 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 20:10:36,395 INFO 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 20:10:36,399 INFO 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 20:10:36,402 INFO 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 20:10:36,406 INFO 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 20:10:36,411 INFO 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 20:10:36,414 INFO 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 20:10:36,674 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-29 20:10:37,003 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-29 20:10:37,196 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:10:37,202 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:37,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:37,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:37,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:10:37,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:10:37,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:37,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:37,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:10:37,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:10:37,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:37,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:37,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:10:37,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:37,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:37,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:37,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:37,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:10:37,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:10:37,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:37,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:37,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:37,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:37,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:37,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:37,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:37,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:37,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:37,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:37,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:37,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:37,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:37,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:37,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:37,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:37,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:37,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:37,566 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:10:37,647 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-29 20:10:37,647 INFO L444 ModelExtractionUtils]: 42 out of 52 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:37,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:37,699 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:10:37,699 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:10:37,700 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_subseq_~ps~0.offset, v_rep(select #length ULTIMATE.start_subseq_~pt~0.base)_1) = -1*ULTIMATE.start_subseq_~ps~0.offset + 1*v_rep(select #length ULTIMATE.start_subseq_~pt~0.base)_1 Supporting invariants [] [2020-11-29 20:10:37,888 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2020-11-29 20:10:37,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:10:37,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:37,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 20:10:37,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:10:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:38,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:10:38,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:10:38,078 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 20:10:38,090 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 20:10:38,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2020-11-29 20:10:38,190 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 49 states and 64 transitions. Complement of second has 9 states. [2020-11-29 20:10:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-29 20:10:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 20:10:38,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2020-11-29 20:10:38,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 30 transitions. Stem has 5 letters. Loop has 5 letters. [2020-11-29 20:10:38,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:38,196 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:10:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:38,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 20:10:38,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:10:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:38,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:10:38,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:10:38,328 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 20:10:38,329 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 20:10:38,329 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2020-11-29 20:10:38,402 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 50 states and 66 transitions. Complement of second has 10 states. [2020-11-29 20:10:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 20:10:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 20:10:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2020-11-29 20:10:38,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 5 letters. Loop has 5 letters. [2020-11-29 20:10:38,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:38,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 10 letters. Loop has 5 letters. [2020-11-29 20:10:38,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:38,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 5 letters. Loop has 10 letters. [2020-11-29 20:10:38,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:38,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2020-11-29 20:10:38,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:10:38,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 22 states and 30 transitions. [2020-11-29 20:10:38,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-29 20:10:38,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 20:10:38,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2020-11-29 20:10:38,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:10:38,423 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-29 20:10:38,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2020-11-29 20:10:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2020-11-29 20:10:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 20:10:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2020-11-29 20:10:38,454 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-11-29 20:10:38,454 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-11-29 20:10:38,454 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:10:38,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2020-11-29 20:10:38,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:10:38,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:10:38,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:10:38,456 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:10:38,456 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 20:10:38,456 INFO L794 eck$LassoCheckResult]: Stem: 300#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 294#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 295#L563 assume !(main_~length1~0 < 1); 301#L563-2 assume !(main_~length2~0 < 1); 310#L566-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 311#L551-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 309#L551-1 assume !subseq_#t~short4; 312#L551-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 302#L552 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem6;havoc subseq_#t~mem5; 303#L552-2 [2020-11-29 20:10:38,456 INFO L796 eck$LassoCheckResult]: Loop: 303#L552-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 305#L551-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 306#L551-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 296#L551-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 297#L552 assume subseq_#t~mem5 == subseq_#t~mem6;havoc subseq_#t~mem6;havoc subseq_#t~mem5;subseq_#t~post7.base, subseq_#t~post7.offset := subseq_~ps~0.base, subseq_~ps~0.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_#t~post7.base, 1 + subseq_#t~post7.offset;havoc subseq_#t~post7.base, subseq_#t~post7.offset; 303#L552-2 [2020-11-29 20:10:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:38,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1298350960, now seen corresponding path program 1 times [2020-11-29 20:10:38,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:38,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807272534] [2020-11-29 20:10:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:38,559 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 20:10:38,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807272534] [2020-11-29 20:10:38,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:10:38,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:10:38,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523658174] [2020-11-29 20:10:38,562 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:10:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:38,563 INFO L82 PathProgramCache]: Analyzing trace with hash 64341867, now seen corresponding path program 2 times [2020-11-29 20:10:38,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:38,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530181365] [2020-11-29 20:10:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,588 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:38,709 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-11-29 20:10:38,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:10:38,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:10:38,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:10:38,752 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-29 20:10:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:10:38,779 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2020-11-29 20:10:38,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:10:38,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2020-11-29 20:10:38,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:10:38,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 24 transitions. [2020-11-29 20:10:38,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-29 20:10:38,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-29 20:10:38,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-11-29 20:10:38,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:10:38,785 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-29 20:10:38,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-11-29 20:10:38,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 20:10:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 20:10:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-11-29 20:10:38,787 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-29 20:10:38,787 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-29 20:10:38,787 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:10:38,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-11-29 20:10:38,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 20:10:38,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:10:38,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:10:38,788 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:10:38,789 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 20:10:38,789 INFO L794 eck$LassoCheckResult]: Stem: 348#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 341#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 342#L563 assume !(main_~length1~0 < 1); 347#L563-2 assume !(main_~length2~0 < 1); 355#L566-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 351#L551-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 353#L551-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 343#L551-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 344#L552 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem6;havoc subseq_#t~mem5; 349#L552-2 [2020-11-29 20:10:38,789 INFO L796 eck$LassoCheckResult]: Loop: 349#L552-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 356#L551-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 359#L551-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 358#L551-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 357#L552 assume subseq_#t~mem5 == subseq_#t~mem6;havoc subseq_#t~mem6;havoc subseq_#t~mem5;subseq_#t~post7.base, subseq_#t~post7.offset := subseq_~ps~0.base, subseq_~ps~0.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_#t~post7.base, 1 + subseq_#t~post7.offset;havoc subseq_#t~post7.base, subseq_#t~post7.offset; 349#L552-2 [2020-11-29 20:10:38,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:38,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1298349038, now seen corresponding path program 1 times [2020-11-29 20:10:38,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:38,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072502792] [2020-11-29 20:10:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:38,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:38,868 INFO L82 PathProgramCache]: Analyzing trace with hash 64341867, now seen corresponding path program 3 times [2020-11-29 20:10:38,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:38,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199610824] [2020-11-29 20:10:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:38,897 INFO L82 PathProgramCache]: Analyzing trace with hash -559155298, now seen corresponding path program 1 times [2020-11-29 20:10:38,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:10:38,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070553463] [2020-11-29 20:10:38,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:10:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:38,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:38,988 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:10:39,110 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-11-29 20:10:39,827 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 114 [2020-11-29 20:10:40,038 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-29 20:10:40,041 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:10:40,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:10:40,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:10:40,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:10:40,041 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:10:40,041 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:40,041 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:10:40,042 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:10:40,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-1.i_Iteration3_Lasso [2020-11-29 20:10:40,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:10:40,042 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:10:40,047 INFO 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 20:10:40,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:10:40,070 INFO 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 20:10:40,078 INFO 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 20:10:40,085 INFO 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 20:10:40,536 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2020-11-29 20:10:40,683 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-11-29 20:10:40,684 INFO 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 20:10:40,687 INFO 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 20:10:40,690 INFO 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 20:10:40,693 INFO 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 20:10:40,723 INFO 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 20:10:40,733 INFO 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 20:10:40,737 INFO 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 20:10:40,740 INFO 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 20:10:40,742 INFO 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 20:10:40,744 INFO 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 20:10:40,747 INFO 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 20:10:40,749 INFO 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 20:10:40,752 INFO 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 20:10:40,754 INFO 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 20:10:40,757 INFO 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 20:10:40,760 INFO 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 20:10:40,762 INFO 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 20:10:41,091 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-29 20:10:41,687 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:10:41,687 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:41,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:41,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:41,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:41,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:41,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:41,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:41,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:10:41,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:41,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:41,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:41,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:41,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:41,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:41,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:41,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:10:41,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:41,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:41,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:41,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:41,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:41,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:41,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:41,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:41,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:41,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:10:41,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:41,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:41,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:41,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:10:41,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:41,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:41,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:41,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:41,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:41,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:41,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:41,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:41,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:10:41,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:10:41,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,925 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2020-11-29 20:10:41,925 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 20:10:41,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:41,947 INFO L401 nArgumentSynthesizer]: We have 36 Motzkin's Theorem applications. [2020-11-29 20:10:41,948 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 20:10:41,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:41,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:41,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:41,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:41,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:41,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:42,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:42,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:42,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:42,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:42,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:42,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:42,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:42,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:42,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:42,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:42,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:42,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:42,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:42,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:42,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:42,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:42,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:42,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:42,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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 20:10:42,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 20:10:42,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:10:42,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:10:42,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:10:42,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:10:42,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:10:42,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:10:42,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:10:42,218 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-29 20:10:42,218 INFO L444 ModelExtractionUtils]: 11 out of 55 variables were initially zero. Simplification set additionally 41 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_599c132c-4659-40f8-bfb1-d448d08d5306/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) [2020-11-29 20:10:42,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:10:42,226 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:10:42,226 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:10:42,226 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_subseq_~pt~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1) = -1*ULTIMATE.start_subseq_~pt~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 Supporting invariants [] [2020-11-29 20:10:42,334 INFO L297 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2020-11-29 20:10:42,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:10:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:10:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:42,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:10:42,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:10:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:42,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:10:42,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:10:42,456 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 20:10:42,457 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-29 20:10:42,457 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-11-29 20:10:42,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 25 states and 32 transitions. Complement of second has 7 states. [2020-11-29 20:10:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 20:10:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 20:10:42,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-11-29 20:10:42,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 9 letters. Loop has 5 letters. [2020-11-29 20:10:42,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:42,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 14 letters. Loop has 5 letters. [2020-11-29 20:10:42,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:42,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 9 letters. Loop has 10 letters. [2020-11-29 20:10:42,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:10:42,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-11-29 20:10:42,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:10:42,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2020-11-29 20:10:42,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:10:42,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:10:42,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:10:42,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:10:42,528 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:10:42,528 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:10:42,528 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:10:42,528 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:10:42,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:10:42,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:10:42,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:10:42,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:10:42 BoogieIcfgContainer [2020-11-29 20:10:42,533 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:10:42,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:10:42,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:10:42,534 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:10:42,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:10:34" (3/4) ... [2020-11-29 20:10:42,538 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:10:42,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:10:42,539 INFO L168 Benchmark]: Toolchain (without parser) took 9414.49 ms. Allocated memory was 113.2 MB in the beginning and 211.8 MB in the end (delta: 98.6 MB). Free memory was 81.1 MB in the beginning and 116.9 MB in the end (delta: -35.8 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:42,540 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:10:42,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.02 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 81.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:42,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.92 ms. Allocated memory is still 113.2 MB. Free memory was 81.9 MB in the beginning and 80.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:10:42,542 INFO L168 Benchmark]: Boogie Preprocessor took 27.13 ms. Allocated memory is still 113.2 MB. Free memory was 80.5 MB in the beginning and 79.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:10:42,542 INFO L168 Benchmark]: RCFGBuilder took 418.66 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 63.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:42,543 INFO L168 Benchmark]: BuchiAutomizer took 8394.98 ms. Allocated memory was 113.2 MB in the beginning and 211.8 MB in the end (delta: 98.6 MB). Free memory was 63.0 MB in the beginning and 117.9 MB in the end (delta: -54.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:42,544 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 211.8 MB. Free memory was 117.9 MB in the beginning and 116.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:10:42,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 514.02 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 81.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.92 ms. Allocated memory is still 113.2 MB. Free memory was 81.9 MB in the beginning and 80.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.13 ms. Allocated memory is still 113.2 MB. Free memory was 80.5 MB in the beginning and 79.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 418.66 ms. Allocated memory is still 113.2 MB. Free memory was 79.1 MB in the beginning and 63.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8394.98 ms. Allocated memory was 113.2 MB in the beginning and 211.8 MB in the end (delta: 98.6 MB). Free memory was 63.0 MB in the beginning and 117.9 MB in the end (delta: -54.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 211.8 MB. Free memory was 117.9 MB in the beginning and 116.9 MB in the end (delta: 1.0 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * ps + unknown-#length-unknown[pt] and consists of 6 locations. One deterministic module has affine ranking function -1 * pt + unknown-#length-unknown[nondetString2] and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 7.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 1. Nontrivial modules had stage [1, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 56 SDtfs, 76 SDslu, 38 SDs, 0 SdLazy, 45 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital243 mio100 ax107 hnf99 lsp90 ukn85 mio100 lsp48 div100 bol100 ite100 ukn100 eq194 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 6 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 36 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...