./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.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_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/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 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:49,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:49,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:49,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:49,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:49,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:49,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:49,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:49,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:49,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:49,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:49,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:49,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:49,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:49,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:49,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:49,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:49,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:49,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:49,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:49,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:49,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:49,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:49,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:49,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:49,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:49,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:49,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:49,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:49,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:49,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:49,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:49,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:49,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:49,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:49,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:49,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:49,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:49,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:49,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:49,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:49,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 02:57:49,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:49,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:49,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:49,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:49,852 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:49,852 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:49,852 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:49,852 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:49,852 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:49,853 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:49,853 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:49,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:49,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:49,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:49,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:49,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:49,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:49,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:49,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:49,856 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:49,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:49,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:49,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:49,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:49,857 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:49,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:49,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:49,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:49,859 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:49,862 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:49,863 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_0d460a03-f608-4743-97e2-908005cc27ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 [2020-11-28 02:57:50,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:50,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:50,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:50,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:50,200 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:50,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i [2020-11-28 02:57:50,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/data/a46c690a3/f31fe899403d42ae9ad607286be8069a/FLAG9bad199bc [2020-11-28 02:57:50,843 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:50,844 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/sv-benchmarks/c/termination-memory-alloca/openbsd_cstpcpy-alloca-2.i [2020-11-28 02:57:50,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/data/a46c690a3/f31fe899403d42ae9ad607286be8069a/FLAG9bad199bc [2020-11-28 02:57:51,160 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/data/a46c690a3/f31fe899403d42ae9ad607286be8069a [2020-11-28 02:57:51,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:51,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:51,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:51,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:51,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8d3a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51, skipping insertion in model container [2020-11-28 02:57:51,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:51,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:51,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,541 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:51,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,659 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:51,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51 WrapperNode [2020-11-28 02:57:51,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:51,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:51,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:51,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:51,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:51,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:51,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:51,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:51,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:51,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:51,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:51,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:57:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:57:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:52,292 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:52,294 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 02:57:52,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52 BoogieIcfgContainer [2020-11-28 02:57:52,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:52,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:52,298 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:52,301 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:52,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:52,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:51" (1/3) ... [2020-11-28 02:57:52,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b0553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:52,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51" (2/3) ... [2020-11-28 02:57:52,304 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b0553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:52,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/3) ... [2020-11-28 02:57:52,306 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpcpy-alloca-2.i [2020-11-28 02:57:52,363 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:52,364 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:52,364 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:52,364 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:52,364 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:52,365 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:52,365 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:52,365 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:52,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 02:57:52,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:52,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:52,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:52,406 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:52,406 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:52,406 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:52,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 02:57:52,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:52,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:52,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:52,408 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:52,408 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:52,416 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 8#L555true assume !(main_~length1~0 < 1); 11#L555-2true assume !(main_~length2~0 < 1); 4#L558-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 6#L549-4true [2020-11-28 02:57:52,416 INFO L796 eck$LassoCheckResult]: Loop: 6#L549-4true call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 3#L549-1true assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 5#L549-3true cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 6#L549-4true [2020-11-28 02:57:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,423 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2020-11-28 02:57:52,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929248404] [2020-11-28 02:57:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:52,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:52,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:52,615 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:52,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,617 INFO L82 PathProgramCache]: Analyzing trace with hash 52792, now seen corresponding path program 1 times [2020-11-28 02:57:52,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340246947] [2020-11-28 02:57:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:52,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:52,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:52,645 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:52,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:52,650 INFO L82 PathProgramCache]: Analyzing trace with hash 180551759, now seen corresponding path program 1 times [2020-11-28 02:57:52,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:52,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724800547] [2020-11-28 02:57:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:52,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:52,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:52,749 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:53,304 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2020-11-28 02:57:53,415 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-28 02:57:53,427 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:53,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:53,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:53,431 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:53,431 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:53,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:53,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:53,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:53,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-2.i_Iteration1_Lasso [2020-11-28 02:57:53,432 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:53,432 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:53,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,952 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-11-28 02:57:54,178 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-11-28 02:57:54,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:54,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:54,890 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:54,895 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:54,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:54,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:54,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/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 [2020-11-28 02:57:54,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:54,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/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) [2020-11-28 02:57:55,101 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:55,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/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) [2020-11-28 02:57:55,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:55,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:55,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,389 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 [2020-11-28 02:57:55,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,450 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 [2020-11-28 02:57:55,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:55,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:55,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:55,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:55,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,523 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 [2020-11-28 02:57:55,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:55,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:55,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:55,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:55,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:55,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:55,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:55,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:55,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:55,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:55,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:55,704 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:55,907 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 02:57:55,908 INFO L444 ModelExtractionUtils]: 21 out of 40 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d460a03-f608-4743-97e2-908005cc27ba/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) [2020-11-28 02:57:55,932 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 [2020-11-28 02:57:55,941 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:55,941 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:55,942 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1, ULTIMATE.start_cstpcpy_~from.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 - 1*ULTIMATE.start_cstpcpy_~from.offset Supporting invariants [] [2020-11-28 02:57:56,028 INFO L297 tatePredicateManager]: 11 out of 13 supporting invariants were superfluous and have been removed [2020-11-28 02:57:56,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:56,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-28 02:57:56,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,159 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 02:57:56,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:56,204 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:57:56,205 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-11-28 02:57:56,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2020-11-28 02:57:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:57:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-11-28 02:57:56,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-28 02:57:56,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:56,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-28 02:57:56,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:56,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-28 02:57:56,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:56,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2020-11-28 02:57:56,287 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:56,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2020-11-28 02:57:56,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:57:56,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:57:56,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:57:56,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:56,291 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:56,291 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:56,291 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:56,291 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:56,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:56,291 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:56,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:57:56,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:57:56 BoogieIcfgContainer [2020-11-28 02:57:56,295 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:57:56,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:56,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:56,296 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:56,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/4) ... [2020-11-28 02:57:56,300 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:57:56,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:56,302 INFO L168 Benchmark]: Toolchain (without parser) took 5137.01 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 61.4 MB in the beginning and 58.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,302 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.43 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 63.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.89 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 62.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,304 INFO L168 Benchmark]: Boogie Preprocessor took 23.85 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 60.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,305 INFO L168 Benchmark]: RCFGBuilder took 568.09 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.7 MB in the beginning and 91.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,306 INFO L168 Benchmark]: BuchiAutomizer took 3997.98 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 90.8 MB in the beginning and 59.8 MB in the end (delta: 31.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,306 INFO L168 Benchmark]: Witness Printer took 4.60 ms. Allocated memory is still 142.6 MB. Free memory was 59.8 MB in the beginning and 58.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 494.43 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 63.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.89 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 62.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.85 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 60.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 568.09 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.7 MB in the beginning and 91.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3997.98 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 90.8 MB in the beginning and 59.8 MB in the end (delta: 31.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.60 ms. Allocated memory is still 142.6 MB. Free memory was 59.8 MB in the beginning and 58.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * from and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 16 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital191 mio100 ax109 hnf99 lsp88 ukn91 mio100 lsp46 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...