./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-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_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/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 f932c1059c6a140c081a3f9115dadbff28d03ec1 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:53:08,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:53:08,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:53:08,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:53:08,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:53:08,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:53:08,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:53:08,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:53:08,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:53:08,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:53:08,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:53:08,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:53:08,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:53:08,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:53:08,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:53:08,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:53:08,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:53:08,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:53:08,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:53:08,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:53:08,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:53:08,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:53:08,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:53:08,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:53:08,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:53:08,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:53:08,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:53:08,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:53:08,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:53:08,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:53:08,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:53:08,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:53:08,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:53:08,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:53:08,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:53:08,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:53:08,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:53:08,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:53:08,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:53:08,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:53:08,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:53:08,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 18:53:08,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:53:08,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:53:08,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:53:08,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:53:08,215 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:53:08,216 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:53:08,216 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:53:08,216 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:53:08,216 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:53:08,217 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:53:08,217 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:53:08,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:53:08,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:53:08,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:53:08,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:53:08,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:53:08,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:53:08,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:53:08,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:53:08,219 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:53:08,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:53:08,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:53:08,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:53:08,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:53:08,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:53:08,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:53:08,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:53:08,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:53:08,221 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:53:08,222 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:53:08,222 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_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f932c1059c6a140c081a3f9115dadbff28d03ec1 [2020-11-29 18:53:08,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:53:08,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:53:08,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:53:08,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:53:08,532 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:53:08,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2020-11-29 18:53:08,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/data/d99ae94bf/574ef625e2d04496a0bcbfb5358a1251/FLAG159f1e77a [2020-11-29 18:53:09,179 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:53:09,184 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2020-11-29 18:53:09,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/data/d99ae94bf/574ef625e2d04496a0bcbfb5358a1251/FLAG159f1e77a [2020-11-29 18:53:09,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/data/d99ae94bf/574ef625e2d04496a0bcbfb5358a1251 [2020-11-29 18:53:09,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:53:09,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:53:09,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:09,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:53:09,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:53:09,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:09" (1/1) ... [2020-11-29 18:53:09,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2047f2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:09, skipping insertion in model container [2020-11-29 18:53:09,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:09" (1/1) ... [2020-11-29 18:53:09,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:53:09,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:53:09,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:09,889 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:53:09,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:10,008 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:53:10,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10 WrapperNode [2020-11-29 18:53:10,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:10,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:10,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:53:10,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:53:10,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:10,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:53:10,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:53:10,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:53:10,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... [2020-11-29 18:53:10,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:53:10,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:53:10,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:53:10,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:53:10,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:53:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:53:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:53:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:53:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:53:10,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:53:10,528 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:53:10,529 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 18:53:10,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:10 BoogieIcfgContainer [2020-11-29 18:53:10,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:53:10,531 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:53:10,532 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:53:10,535 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:53:10,536 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:10,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:53:09" (1/3) ... [2020-11-29 18:53:10,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a70086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:53:10, skipping insertion in model container [2020-11-29 18:53:10,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:10,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:10" (2/3) ... [2020-11-29 18:53:10,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a70086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:53:10, skipping insertion in model container [2020-11-29 18:53:10,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:53:10,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:10" (3/3) ... [2020-11-29 18:53:10,540 INFO L373 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2020-11-29 18:53:10,636 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:53:10,636 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:53:10,636 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:53:10,636 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:53:10,636 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:53:10,637 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:53:10,637 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:53:10,637 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:53:10,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-29 18:53:10,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:53:10,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:10,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:10,672 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 18:53:10,672 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:10,672 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:53:10,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-29 18:53:10,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:53:10,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:53:10,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:53:10,674 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 18:53:10,674 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:53:10,680 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(1, main_~y~0.base, main_~y~0.offset, 4); 5#L550-3true [2020-11-29 18:53:10,681 INFO L796 eck$LassoCheckResult]: Loop: 5#L550-3true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 9#L550-1true assume !!(main_#t~mem4 > 0);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);call main_#t~mem6 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem5 - main_#t~mem6, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem5;havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(1 + main_#t~mem7, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem7; 5#L550-3true [2020-11-29 18:53:10,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:10,686 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 18:53:10,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:10,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773574245] [2020-11-29 18:53:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:10,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:10,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:10,831 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2020-11-29 18:53:10,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:10,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603280462] [2020-11-29 18:53:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:10,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:10,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:10,871 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:10,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:10,873 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-11-29 18:53:10,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:53:10,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105859658] [2020-11-29 18:53:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:53:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:10,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:53:10,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:53:10,924 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:53:11,040 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-11-29 18:53:11,379 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-11-29 18:53:11,519 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-11-29 18:53:11,532 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:53:11,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:53:11,533 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:53:11,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:53:11,533 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:53:11,533 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:11,533 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:53:11,534 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:53:11,534 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i_Iteration1_Lasso [2020-11-29 18:53:11,534 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:53:11,534 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:53:11,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,804 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-11-29 18:53:11,931 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-11-29 18:53:11,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:11,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:53:12,385 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:53:12,391 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:12,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:12,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:12,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:12,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:12,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:12,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/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 18:53:12,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:53:12,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:53:12,512 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 18:53:12,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/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) [2020-11-29 18:53:12,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:12,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:12,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:12,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:12,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/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 18:53:12,692 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 18:53:12,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:12,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:53:12,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:53:12,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:12,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/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) [2020-11-29 18:53:12,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:53:12,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:53:12,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:53:12,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:53:12,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:53:12,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:53:12,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,821 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:53:12,891 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 18:53:12,891 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f12c9ba-3aaa-4109-b193-78dd4aeeb5a4/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:53:12,894 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:53:12,898 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 18:53:12,898 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:53:12,899 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1 - 1 >= 0] [2020-11-29 18:53:12,983 INFO L297 tatePredicateManager]: 10 out of 12 supporting invariants were superfluous and have been removed [2020-11-29 18:53:12,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:53:13,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:13,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:53:13,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:13,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:53:13,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:53:13,132 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:53:13,134 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-29 18:53:13,209 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 18 states and 20 transitions. Complement of second has 7 states. [2020-11-29 18:53:13,211 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 18:53:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:53:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-11-29 18:53:13,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 18:53:13,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:13,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 18:53:13,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:13,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-29 18:53:13,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:53:13,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2020-11-29 18:53:13,224 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:53:13,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-11-29 18:53:13,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:53:13,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:53:13,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:53:13,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:53:13,229 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:53:13,229 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:53:13,230 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:53:13,230 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:53:13,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:53:13,230 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:53:13,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:53:13,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:53:13 BoogieIcfgContainer [2020-11-29 18:53:13,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:53:13,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:53:13,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:53:13,237 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:53:13,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:10" (3/4) ... [2020-11-29 18:53:13,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:53:13,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:53:13,244 INFO L168 Benchmark]: Toolchain (without parser) took 3788.03 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 79.3 MB in the beginning and 83.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:13,246 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 87.8 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:13,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.47 ms. Allocated memory is still 113.2 MB. Free memory was 79.0 MB in the beginning and 80.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:13,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.37 ms. Allocated memory is still 113.2 MB. Free memory was 79.7 MB in the beginning and 78.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:13,252 INFO L168 Benchmark]: Boogie Preprocessor took 49.63 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 76.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:13,254 INFO L168 Benchmark]: RCFGBuilder took 410.89 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 65.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:13,260 INFO L168 Benchmark]: BuchiAutomizer took 2704.84 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 64.4 MB in the beginning and 83.8 MB in the end (delta: -19.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:13,260 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 157.3 MB. Free memory is still 83.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:13,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 87.8 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.47 ms. Allocated memory is still 113.2 MB. Free memory was 79.0 MB in the beginning and 80.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.37 ms. Allocated memory is still 113.2 MB. Free memory was 79.7 MB in the beginning and 78.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.63 ms. Allocated memory is still 113.2 MB. Free memory was 78.3 MB in the beginning and 76.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 410.89 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 65.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2704.84 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 64.4 MB in the beginning and 83.8 MB in the end (delta: -19.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.98 ms. Allocated memory is still 157.3 MB. Free memory is still 83.8 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 #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 6 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital200 mio100 ax109 hnf100 lsp88 ukn58 mio100 lsp42 div100 bol100 ite100 ukn100 eq191 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 8 VariablesLoop: 6 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...