./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:22:29,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:22:29,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:22:29,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:22:29,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:22:29,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:22:29,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:22:29,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:22:29,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:22:29,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:22:29,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:22:29,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:22:29,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:22:29,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:22:29,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:22:29,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:22:29,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:22:29,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:22:29,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:22:29,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:22:29,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:22:29,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:22:29,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:22:29,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:22:29,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:22:29,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:22:29,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:22:29,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:22:29,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:22:29,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:22:29,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:22:29,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:22:29,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:22:29,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:22:29,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:22:29,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:22:29,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:22:29,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:22:29,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:22:29,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:22:29,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:22:29,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:22:29,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:22:29,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:22:29,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:22:29,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:22:29,898 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:22:29,899 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:22:29,899 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:22:29,899 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:22:29,900 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:22:29,900 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:22:29,901 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:22:29,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:22:29,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:22:29,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:22:29,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:22:29,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:22:29,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:22:29,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:22:29,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:22:29,904 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:22:29,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:22:29,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:22:29,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:22:29,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:22:29,906 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:22:29,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:22:29,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:22:29,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:22:29,907 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:22:29,908 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:22:29,909 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_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b [2020-11-29 19:22:30,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:22:30,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:22:30,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:22:30,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:22:30,402 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:22:30,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_alloca.i [2020-11-29 19:22:30,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/data/911bec4aa/b4a37d249da843c8986a3c0324ab0bf3/FLAG5e0a84c1f [2020-11-29 19:22:31,161 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:22:31,163 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/sv-benchmarks/c/termination-15/count_up_alloca.i [2020-11-29 19:22:31,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/data/911bec4aa/b4a37d249da843c8986a3c0324ab0bf3/FLAG5e0a84c1f [2020-11-29 19:22:31,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/data/911bec4aa/b4a37d249da843c8986a3c0324ab0bf3 [2020-11-29 19:22:31,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:22:31,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:22:31,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:22:31,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:22:31,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:22:31,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:22:31" (1/1) ... [2020-11-29 19:22:31,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcd357e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:31, skipping insertion in model container [2020-11-29 19:22:31,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:22:31" (1/1) ... [2020-11-29 19:22:31,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:22:31,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:22:32,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:22:32,067 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:22:32,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:22:32,256 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:22:32,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32 WrapperNode [2020-11-29 19:22:32,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:22:32,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:22:32,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:22:32,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:22:32,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:22:32,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:22:32,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:22:32,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:22:32,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... [2020-11-29 19:22:32,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:22:32,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:22:32,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:22:32,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:22:32,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:22:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:22:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:22:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:22:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:22:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:22:33,023 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:22:33,024 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 19:22:33,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:22:33 BoogieIcfgContainer [2020-11-29 19:22:33,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:22:33,027 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:22:33,027 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:22:33,032 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:22:33,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:22:33,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:22:31" (1/3) ... [2020-11-29 19:22:33,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50604ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:22:33, skipping insertion in model container [2020-11-29 19:22:33,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:22:33,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:32" (2/3) ... [2020-11-29 19:22:33,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50604ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:22:33, skipping insertion in model container [2020-11-29 19:22:33,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:22:33,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:22:33" (3/3) ... [2020-11-29 19:22:33,040 INFO L373 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2020-11-29 19:22:33,118 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:22:33,118 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:22:33,118 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:22:33,119 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:22:33,119 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:22:33,119 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:22:33,119 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:22:33,120 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:22:33,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-29 19:22:33,161 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-29 19:22:33,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:33,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:33,169 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:22:33,170 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:22:33,170 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:22:33,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-29 19:22:33,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-29 19:22:33,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:33,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:33,174 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:22:33,174 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:22:33,183 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 15#L369true assume !(main_~length~0 < 1); 20#L369-2true call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 12#L371true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 16#L372-3true [2020-11-29 19:22:33,184 INFO L796 eck$LassoCheckResult]: Loop: 16#L372-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 7#L374true assume main_~val~0 > main_~limit~0;main_~val~0 := main_~limit~0; 10#L374-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372-2true main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 16#L372-3true [2020-11-29 19:22:33,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:33,192 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2020-11-29 19:22:33,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:33,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458098365] [2020-11-29 19:22:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:33,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:33,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:33,373 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2020-11-29 19:22:33,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:33,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655723771] [2020-11-29 19:22:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:33,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:33,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:33,410 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2020-11-29 19:22:33,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:33,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574301545] [2020-11-29 19:22:33,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:33,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:33,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:33,476 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:33,593 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-11-29 19:22:33,871 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-29 19:22:33,987 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:22:33,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:22:33,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:22:33,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:22:33,988 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:22:33,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:33,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:22:33,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:22:33,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2020-11-29 19:22:33,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:22:33,990 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:22:34,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,066 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 19:22:34,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,236 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-11-29 19:22:34,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:34,678 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:22:34,684 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:22:34,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:34,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:34,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:34,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:34,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:34,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:34,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:34,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:34,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:34,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:34,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:34,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:34,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:34,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:34,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:34,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:34,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:34,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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 19:22:34,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:34,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:34,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:34,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:34,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:34,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:34,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:34,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:34,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:34,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:34,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:34,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:34,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:34,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:34,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:34,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:34,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:34,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:34,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:34,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:34,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:34,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:34,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:34,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:34,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:34,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:34,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:34,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:34,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:34,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:34,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:34,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:34,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:34,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:34,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:35,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:35,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:35,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:35,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:35,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:35,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:35,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:35,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:35,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:35,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:35,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:35,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:35,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:35,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:35,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:35,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:35,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:22:35,233 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-29 19:22:35,233 INFO L444 ModelExtractionUtils]: 5 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:22:35,273 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 19:22:35,277 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:22:35,278 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:22:35,279 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2020-11-29 19:22:35,339 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-29 19:22:35,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:35,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:22:35,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:35,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:22:35,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:35,604 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:22:35,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2020-11-29 19:22:35,697 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 43 states and 60 transitions. Complement of second has 7 states. [2020-11-29 19:22:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:22:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:22:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2020-11-29 19:22:35,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-29 19:22:35,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:35,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-29 19:22:35,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:35,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-29 19:22:35,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:35,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 60 transitions. [2020-11-29 19:22:35,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 19:22:35,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 20 transitions. [2020-11-29 19:22:35,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:22:35,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 19:22:35,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2020-11-29 19:22:35,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:22:35,720 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:22:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2020-11-29 19:22:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-29 19:22:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:22:35,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-11-29 19:22:35,754 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:22:35,755 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:22:35,755 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:22:35,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-11-29 19:22:35,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 19:22:35,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:35,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:35,757 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:35,757 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:22:35,757 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 134#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 135#L369 assume !(main_~length~0 < 1); 140#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 137#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 138#L372-3 assume !(main_~i~0 < main_~length~0); 141#L372-4 main_~j~0 := 0; 130#L379-3 [2020-11-29 19:22:35,758 INFO L796 eck$LassoCheckResult]: Loop: 130#L379-3 assume !!(main_~j~0 < main_~length~0); 127#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 128#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 129#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 130#L379-3 [2020-11-29 19:22:35,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:35,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2020-11-29 19:22:35,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:35,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98143442] [2020-11-29 19:22:35,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:35,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98143442] [2020-11-29 19:22:35,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:22:35,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:22:35,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245641789] [2020-11-29 19:22:35,842 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:22:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:35,843 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2020-11-29 19:22:35,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:35,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510505902] [2020-11-29 19:22:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:35,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:35,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:35,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:35,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:22:35,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:22:35,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:22:35,955 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-11-29 19:22:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:22:36,020 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-29 19:22:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:22:36,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-11-29 19:22:36,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 19:22:36,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2020-11-29 19:22:36,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 19:22:36,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 19:22:36,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2020-11-29 19:22:36,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:22:36,025 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-29 19:22:36,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2020-11-29 19:22:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2020-11-29 19:22:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:22:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-11-29 19:22:36,028 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-29 19:22:36,028 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-29 19:22:36,028 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:22:36,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2020-11-29 19:22:36,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 19:22:36,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:36,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:36,030 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:36,030 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:22:36,030 INFO L794 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 174#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 175#L369 assume !(main_~length~0 < 1); 180#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 177#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 178#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 171#L374 assume !(main_~val~0 > main_~limit~0); 172#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 173#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 179#L372-3 assume !(main_~i~0 < main_~length~0); 181#L372-4 main_~j~0 := 0; 170#L379-3 [2020-11-29 19:22:36,030 INFO L796 eck$LassoCheckResult]: Loop: 170#L379-3 assume !!(main_~j~0 < main_~length~0); 167#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 168#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 169#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 170#L379-3 [2020-11-29 19:22:36,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:36,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2020-11-29 19:22:36,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:36,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226715645] [2020-11-29 19:22:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:36,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:36,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:36,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:36,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:36,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2020-11-29 19:22:36,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:36,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686088040] [2020-11-29 19:22:36,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:36,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:36,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:36,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:36,106 INFO L82 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2020-11-29 19:22:36,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:36,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339946064] [2020-11-29 19:22:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:36,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:36,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:36,170 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:36,544 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-11-29 19:22:36,645 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:22:36,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:22:36,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:22:36,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:22:36,646 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:22:36,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:36,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:22:36,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:22:36,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2020-11-29 19:22:36,646 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:22:36,646 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:22:36,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,928 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-11-29 19:22:36,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:36,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:37,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:22:37,412 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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) [2020-11-29 19:22:37,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:37,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:37,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:37,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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) [2020-11-29 19:22:37,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:37,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:37,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:37,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:37,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:37,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:37,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:37,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:37,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:37,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:37,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:37,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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) [2020-11-29 19:22:37,631 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:37,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:37,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:37,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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 19:22:37,694 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:37,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:37,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:37,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:37,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:37,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:37,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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 19:22:37,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:37,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:37,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:37,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:37,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:37,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:37,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:37,832 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:22:37,861 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 19:22:37,862 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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) [2020-11-29 19:22:37,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:37,874 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:22:37,874 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:22:37,874 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2, ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2 - 1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-11-29 19:22:37,935 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-29 19:22:37,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:22:37,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:37,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:22:37,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:38,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:22:38,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:38,029 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:22:38,029 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-29 19:22:38,123 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 21 states and 27 transitions. Complement of second has 6 states. [2020-11-29 19:22:38,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:22:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:22:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-11-29 19:22:38,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2020-11-29 19:22:38,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:38,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-29 19:22:38,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:38,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2020-11-29 19:22:38,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:38,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-11-29 19:22:38,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:38,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2020-11-29 19:22:38,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:22:38,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 19:22:38,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2020-11-29 19:22:38,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:22:38,138 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2020-11-29 19:22:38,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2020-11-29 19:22:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2020-11-29 19:22:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 19:22:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-11-29 19:22:38,143 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-29 19:22:38,144 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-29 19:22:38,144 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:22:38,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-11-29 19:22:38,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:38,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:38,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:38,149 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:38,150 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:22:38,151 INFO L794 eck$LassoCheckResult]: Stem: 297#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 293#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 294#L369 assume !(main_~length~0 < 1); 300#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 295#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 296#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 290#L374 assume !(main_~val~0 > main_~limit~0); 291#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 292#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 298#L372-3 assume !(main_~i~0 < main_~length~0); 299#L372-4 main_~j~0 := 0; 289#L379-3 assume !!(main_~j~0 < main_~length~0); 283#L380-3 [2020-11-29 19:22:38,151 INFO L796 eck$LassoCheckResult]: Loop: 283#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 284#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 283#L380-3 [2020-11-29 19:22:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:38,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2020-11-29 19:22:38,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:38,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669371949] [2020-11-29 19:22:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:38,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:38,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:38,226 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:38,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2020-11-29 19:22:38,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:38,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714351267] [2020-11-29 19:22:38,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:38,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:38,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:38,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:38,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:38,261 INFO L82 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2020-11-29 19:22:38,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:38,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537537997] [2020-11-29 19:22:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:38,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:38,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:38,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:38,509 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-11-29 19:22:38,845 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-11-29 19:22:38,934 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:22:38,934 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:22:38,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:22:38,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:22:38,935 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:22:38,935 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:38,935 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:22:38,935 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:22:38,935 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2020-11-29 19:22:38,935 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:22:38,935 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:22:38,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:38,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:38,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,120 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-29 19:22:39,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:39,663 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:22:39,663 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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 19:22:39,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:39,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:39,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:39,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:39,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:39,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:39,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:39,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:39,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/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 19:22:39,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:39,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:39,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:39,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:39,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:39,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:39,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:39,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:22:39,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:39,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:39,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:39,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:39,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:39,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:39,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:39,886 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:22:39,923 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-29 19:22:39,923 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:22:39,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:39,938 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:22:39,939 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:22:39,939 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~i~0 4) (- 4)))_1, ULTIMATE.start_main_~limit~0) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~i~0 4) (- 4)))_1 + 1*ULTIMATE.start_main_~limit~0 Supporting invariants [] [2020-11-29 19:22:40,002 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 19:22:40,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:22:40,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:40,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:22:40,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:40,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:22:40,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:40,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-29 19:22:40,214 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 6 states. [2020-11-29 19:22:40,377 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand 6 states. Result 39 states and 51 transitions. Complement of second has 11 states. [2020-11-29 19:22:40,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-29 19:22:40,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 19:22:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2020-11-29 19:22:40,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-29 19:22:40,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:40,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2020-11-29 19:22:40,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:40,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 12 letters. Loop has 4 letters. [2020-11-29 19:22:40,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:40,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2020-11-29 19:22:40,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:40,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 34 states and 44 transitions. [2020-11-29 19:22:40,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-29 19:22:40,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-29 19:22:40,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2020-11-29 19:22:40,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:22:40,385 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-11-29 19:22:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2020-11-29 19:22:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2020-11-29 19:22:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 19:22:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-29 19:22:40,389 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-29 19:22:40,389 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-29 19:22:40,389 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:22:40,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2020-11-29 19:22:40,390 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:40,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:40,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:40,391 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:40,391 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:22:40,392 INFO L794 eck$LassoCheckResult]: Stem: 454#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 452#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 453#L369 assume !(main_~length~0 < 1); 461#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 455#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 456#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 459#L374 assume !(main_~val~0 > main_~limit~0); 466#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 457#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 458#L372-3 assume !(main_~i~0 < main_~length~0); 460#L372-4 main_~j~0 := 0; 447#L379-3 assume !!(main_~j~0 < main_~length~0); 448#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 467#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 445#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 446#L379-3 assume !!(main_~j~0 < main_~length~0); 441#L380-3 [2020-11-29 19:22:40,392 INFO L796 eck$LassoCheckResult]: Loop: 441#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 442#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 441#L380-3 [2020-11-29 19:22:40,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:40,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2020-11-29 19:22:40,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:40,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060366689] [2020-11-29 19:22:40,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:40,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060366689] [2020-11-29 19:22:40,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935703915] [2020-11-29 19:22:40,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:22:40,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 19:22:40,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 19:22:40,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:22:40,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:40,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:22:40,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-29 19:22:40,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317912703] [2020-11-29 19:22:40,707 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:22:40,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:40,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2020-11-29 19:22:40,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:40,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307318816] [2020-11-29 19:22:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:40,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:40,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:40,730 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:40,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:22:40,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 19:22:40,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:22:40,816 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. cyclomatic complexity: 13 Second operand 10 states. [2020-11-29 19:22:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:22:41,078 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2020-11-29 19:22:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 19:22:41,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 64 transitions. [2020-11-29 19:22:41,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 19:22:41,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 40 states and 51 transitions. [2020-11-29 19:22:41,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-29 19:22:41,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 19:22:41,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2020-11-29 19:22:41,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:22:41,083 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-11-29 19:22:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2020-11-29 19:22:41,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2020-11-29 19:22:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-29 19:22:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-11-29 19:22:41,087 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-11-29 19:22:41,088 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-11-29 19:22:41,088 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 19:22:41,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2020-11-29 19:22:41,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:41,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:41,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:41,097 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:41,097 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:22:41,097 INFO L794 eck$LassoCheckResult]: Stem: 597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 594#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 595#L369 assume main_~length~0 < 1;main_~length~0 := 1; 602#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 598#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 599#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 617#L374 assume !(main_~val~0 > main_~limit~0); 616#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 615#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 614#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 611#L374 assume !(main_~val~0 > main_~limit~0); 613#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 612#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 610#L372-3 assume !(main_~i~0 < main_~length~0); 606#L372-4 main_~j~0 := 0; 591#L379-3 assume !!(main_~j~0 < main_~length~0); 585#L380-3 [2020-11-29 19:22:41,098 INFO L796 eck$LassoCheckResult]: Loop: 585#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 586#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 585#L380-3 [2020-11-29 19:22:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash -420071865, now seen corresponding path program 1 times [2020-11-29 19:22:41,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:41,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393875229] [2020-11-29 19:22:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:41,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393875229] [2020-11-29 19:22:41,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078818246] [2020-11-29 19:22:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:22:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:41,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:22:41,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:41,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 19:22:41,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-11-29 19:22:41,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069464528] [2020-11-29 19:22:41,331 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:22:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:41,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2020-11-29 19:22:41,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:41,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155260069] [2020-11-29 19:22:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:41,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:22:41,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:22:41,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:22:41,422 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand 5 states. [2020-11-29 19:22:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:22:41,480 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-11-29 19:22:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:22:41,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-11-29 19:22:41,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:41,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 28 transitions. [2020-11-29 19:22:41,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:22:41,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-29 19:22:41,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2020-11-29 19:22:41,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:22:41,483 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-11-29 19:22:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2020-11-29 19:22:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 19:22:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 19:22:41,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2020-11-29 19:22:41,486 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-11-29 19:22:41,486 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2020-11-29 19:22:41,486 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 19:22:41,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2020-11-29 19:22:41,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:41,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:41,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:41,494 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:41,496 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:22:41,497 INFO L794 eck$LassoCheckResult]: Stem: 716#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 713#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 714#L369 assume !(main_~length~0 < 1); 720#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 717#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 718#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 721#L374 assume !(main_~val~0 > main_~limit~0); 725#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 724#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 722#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 711#L374 assume !(main_~val~0 > main_~limit~0); 712#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 715#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 719#L372-3 assume !(main_~i~0 < main_~length~0); 723#L372-4 main_~j~0 := 0; 710#L379-3 assume !!(main_~j~0 < main_~length~0); 704#L380-3 [2020-11-29 19:22:41,498 INFO L796 eck$LassoCheckResult]: Loop: 704#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 705#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 704#L380-3 [2020-11-29 19:22:41,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:41,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1431189115, now seen corresponding path program 2 times [2020-11-29 19:22:41,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:41,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319465425] [2020-11-29 19:22:41,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:41,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 4 times [2020-11-29 19:22:41,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:41,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071170087] [2020-11-29 19:22:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,569 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:41,571 INFO L82 PathProgramCache]: Analyzing trace with hash -983203254, now seen corresponding path program 2 times [2020-11-29 19:22:41,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:41,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674286519] [2020-11-29 19:22:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:41,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:41,608 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:41,984 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 79 [2020-11-29 19:22:42,105 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:22:42,105 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:22:42,105 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:22:42,105 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:22:42,105 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:22:42,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:42,105 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:22:42,105 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:22:42,106 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration7_Lasso [2020-11-29 19:22:42,106 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:22:42,106 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:22:42,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:42,676 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:22:42,676 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:42,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:42,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:42,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:42,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:42,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:42,697 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:42,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:42,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:42,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:42,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:42,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:42,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:42,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:42,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:42,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:42,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:42,829 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 19:22:42,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:42,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:42,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:42,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:42,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:42,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:42,844 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:22:42,854 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 19:22:42,854 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:42,859 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:22:42,863 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:22:42,863 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:22:42,864 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3, ULTIMATE.start_main_~limit~0) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3 + 1*ULTIMATE.start_main_~limit~0 Supporting invariants [] [2020-11-29 19:22:42,906 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-29 19:22:42,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:22:42,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:42,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:22:42,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:42,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:22:42,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:43,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:43,010 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:22:43,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-11-29 19:22:43,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 7 states. [2020-11-29 19:22:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:22:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:22:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-29 19:22:43,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-29 19:22:43,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:43,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 18 letters. Loop has 2 letters. [2020-11-29 19:22:43,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:43,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2020-11-29 19:22:43,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:43,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-11-29 19:22:43,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:43,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 26 states and 32 transitions. [2020-11-29 19:22:43,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:22:43,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-29 19:22:43,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2020-11-29 19:22:43,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:22:43,046 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-29 19:22:43,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2020-11-29 19:22:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-11-29 19:22:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 19:22:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2020-11-29 19:22:43,049 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-29 19:22:43,049 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-29 19:22:43,049 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 19:22:43,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2020-11-29 19:22:43,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 19:22:43,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:43,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:43,052 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:43,052 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 19:22:43,052 INFO L794 eck$LassoCheckResult]: Stem: 860#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 857#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 858#L369 assume !(main_~length~0 < 1); 864#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 861#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 862#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 855#L374 assume !(main_~val~0 > main_~limit~0); 856#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 859#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 863#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 865#L374 assume !(main_~val~0 > main_~limit~0); 870#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 869#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 868#L372-3 assume !(main_~i~0 < main_~length~0); 867#L372-4 main_~j~0 := 0; 853#L379-3 assume !!(main_~j~0 < main_~length~0); 854#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 871#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 847#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 848#L379-3 assume !!(main_~j~0 < main_~length~0); 849#L380-3 [2020-11-29 19:22:43,052 INFO L796 eck$LassoCheckResult]: Loop: 849#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 850#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~post213;havoc main_#t~mem212; 849#L380-3 [2020-11-29 19:22:43,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:43,053 INFO L82 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2020-11-29 19:22:43,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:43,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164851878] [2020-11-29 19:22:43,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:43,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:43,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:43,089 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:43,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 5 times [2020-11-29 19:22:43,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:43,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95026792] [2020-11-29 19:22:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:43,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:43,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:43,113 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:43,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:43,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2020-11-29 19:22:43,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:43,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685872116] [2020-11-29 19:22:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:43,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:43,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:43,178 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:43,695 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 92 [2020-11-29 19:22:43,780 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:22:43,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:22:43,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:22:43,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:22:43,781 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:22:43,781 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:43,781 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:22:43,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:22:43,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration8_Lasso [2020-11-29 19:22:43,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:22:43,781 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:22:43,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:43,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:43,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:43,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:43,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:43,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:43,971 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-29 19:22:43,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:22:44,383 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:22:44,383 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:44,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:44,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:44,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:44,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:44,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:44,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:22:44,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:22:44,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:22:44,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:44,501 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:44,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:44,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:44,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:44,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:44,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:22:44,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:22:44,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:22:44,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:22:44,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:22:44,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:22:44,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:22:44,708 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:22:44,729 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 19:22:44,730 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0b1f3f82-c695-4b53-b9ea-8646f1cf66de/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:22:44,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:22:44,736 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:22:44,736 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:22:44,736 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_4) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_4 Supporting invariants [] [2020-11-29 19:22:44,774 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 19:22:44,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:22:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:44,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:22:44,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:44,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:22:44,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:44,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:22:44,865 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-29 19:22:44,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2020-11-29 19:22:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:22:44,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:22:44,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-29 19:22:44,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2020-11-29 19:22:44,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:44,892 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 19:22:44,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:44,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:22:44,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:44,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:22:44,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:44,988 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:22:44,988 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-29 19:22:45,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2020-11-29 19:22:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:22:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:22:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-29 19:22:45,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2020-11-29 19:22:45,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:45,024 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 19:22:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:45,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:22:45,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:45,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:22:45,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:22:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:22:45,156 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:22:45,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-29 19:22:45,178 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 6 states. [2020-11-29 19:22:45,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:22:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:22:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-11-29 19:22:45,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2020-11-29 19:22:45,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:45,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2020-11-29 19:22:45,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:45,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2020-11-29 19:22:45,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:22:45,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-11-29 19:22:45,182 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:22:45,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-11-29 19:22:45,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:22:45,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:22:45,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:22:45,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:22:45,183 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:22:45,183 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:22:45,183 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:22:45,183 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 19:22:45,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:22:45,183 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:22:45,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:22:45,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:22:45 BoogieIcfgContainer [2020-11-29 19:22:45,191 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:22:45,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:22:45,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:22:45,192 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:22:45,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:22:33" (3/4) ... [2020-11-29 19:22:45,196 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:22:45,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:22:45,198 INFO L168 Benchmark]: Toolchain (without parser) took 13770.42 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 64.6 MB in the beginning and 138.9 MB in the end (delta: -74.2 MB). Peak memory consumption was 724.4 kB. Max. memory is 16.1 GB. [2020-11-29 19:22:45,199 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 100.7 MB. Free memory was 73.6 MB in the beginning and 73.6 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:22:45,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.07 ms. Allocated memory is still 100.7 MB. Free memory was 64.4 MB in the beginning and 61.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:22:45,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.54 ms. Allocated memory is still 100.7 MB. Free memory was 61.7 MB in the beginning and 60.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:22:45,201 INFO L168 Benchmark]: Boogie Preprocessor took 55.73 ms. Allocated memory is still 100.7 MB. Free memory was 59.7 MB in the beginning and 58.8 MB in the end (delta: 894.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:22:45,202 INFO L168 Benchmark]: RCFGBuilder took 638.37 ms. Allocated memory is still 100.7 MB. Free memory was 58.8 MB in the beginning and 45.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:22:45,203 INFO L168 Benchmark]: BuchiAutomizer took 12163.92 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 45.0 MB in the beginning and 138.9 MB in the end (delta: -93.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:22:45,203 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 176.2 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:22:45,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 100.7 MB. Free memory was 73.6 MB in the beginning and 73.6 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 828.07 ms. Allocated memory is still 100.7 MB. Free memory was 64.4 MB in the beginning and 61.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.54 ms. Allocated memory is still 100.7 MB. Free memory was 61.7 MB in the beginning and 60.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.73 ms. Allocated memory is still 100.7 MB. Free memory was 59.7 MB in the beginning and 58.8 MB in the end (delta: 894.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 638.37 ms. Allocated memory is still 100.7 MB. Free memory was 58.8 MB in the beginning and 45.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12163.92 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 45.0 MB in the beginning and 138.9 MB in the end (delta: -93.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.48 ms. Allocated memory is still 176.2 MB. Free memory is still 138.9 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[arr] + -1 * arr + -4 * j and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][arr + i * 4 + -4] + limit and consists of 8 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] + limit and consists of 4 locations. One nondeterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 10.0s. Construction of modules took 0.4s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 135 SDtfs, 191 SDslu, 112 SDs, 0 SdLazy, 205 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital140 mio100 ax100 hnf97 lsp94 ukn77 mio100 lsp57 div100 bol100 ite100 ukn100 eq157 hnf89 smp84 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms 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...