./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/genady-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_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/genady-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 2f927f4255c7cccf769428cf5a40267dd3884041 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:56:30,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:56:30,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:56:30,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:56:30,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:56:30,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:56:30,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:56:30,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:56:30,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:56:30,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:56:30,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:56:30,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:56:30,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:56:30,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:56:30,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:56:30,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:56:30,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:56:30,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:56:30,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:56:30,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:56:30,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:56:30,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:56:30,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:56:30,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:56:30,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:56:30,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:56:30,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:56:30,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:56:30,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:56:30,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:56:30,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:56:30,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:56:30,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:56:30,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:56:30,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:56:30,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:56:30,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:56:30,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:56:30,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:56:30,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:56:30,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:56:30,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:56:30,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:56:30,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:56:30,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:56:30,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:56:30,656 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:56:30,657 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:56:30,657 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:56:30,657 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:56:30,658 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:56:30,658 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:56:30,659 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:56:30,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:56:30,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:56:30,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:56:30,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:56:30,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:56:30,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:56:30,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:56:30,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:56:30,662 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:56:30,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:56:30,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:56:30,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:56:30,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:56:30,663 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:56:30,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:56:30,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:56:30,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:56:30,665 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:56:30,666 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:56:30,666 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_5e685c89-e37c-433b-97eb-859922fa0d63/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f927f4255c7cccf769428cf5a40267dd3884041 [2020-11-29 19:56:31,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:56:31,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:56:31,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:56:31,117 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:56:31,118 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:56:31,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/genady-alloca.i [2020-11-29 19:56:31,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/data/4d574f7e3/5ce8f4f7644148c697f0882ab135d1a8/FLAGe42b30077 [2020-11-29 19:56:31,851 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:56:31,854 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/sv-benchmarks/c/termination-memory-alloca/genady-alloca.i [2020-11-29 19:56:31,868 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/data/4d574f7e3/5ce8f4f7644148c697f0882ab135d1a8/FLAGe42b30077 [2020-11-29 19:56:32,116 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/bin/uautomizer/data/4d574f7e3/5ce8f4f7644148c697f0882ab135d1a8 [2020-11-29 19:56:32,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:56:32,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:56:32,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:56:32,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:56:32,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:56:32,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4752633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32, skipping insertion in model container [2020-11-29 19:56:32,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:56:32,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:56:32,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:56:32,529 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:56:32,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:56:32,655 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:56:32,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32 WrapperNode [2020-11-29 19:56:32,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:56:32,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:56:32,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:56:32,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:56:32,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:56:32,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:56:32,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:56:32,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:56:32,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... [2020-11-29 19:56:32,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:56:32,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:56:32,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:56:32,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:56:32,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:32,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:56:32,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:56:32,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:56:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:56:32,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:56:32,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:56:33,164 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:56:33,164 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 19:56:33,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:56:33 BoogieIcfgContainer [2020-11-29 19:56:33,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:56:33,167 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:56:33,167 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:56:33,172 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:56:33,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:56:33,173 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:56:32" (1/3) ... [2020-11-29 19:56:33,174 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bb4f022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:56:33, skipping insertion in model container [2020-11-29 19:56:33,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:56:33,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:32" (2/3) ... [2020-11-29 19:56:33,175 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bb4f022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:56:33, skipping insertion in model container [2020-11-29 19:56:33,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:56:33,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:56:33" (3/3) ... [2020-11-29 19:56:33,177 INFO L373 chiAutomizerObserver]: Analyzing ICFG genady-alloca.i [2020-11-29 19:56:33,253 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:56:33,256 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:56:33,266 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:56:33,267 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:56:33,267 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:56:33,267 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:56:33,267 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:56:33,268 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:56:33,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-29 19:56:33,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:56:33,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:56:33,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:56:33,322 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:56:33,323 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:56:33,323 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:56:33,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-29 19:56:33,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:56:33,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:56:33,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:56:33,325 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:56:33,348 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:56:33,357 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~mem8, main_#t~post9, main_#t~mem4, main_#t~post5, main_#t~mem6, main_#t~mem7, main_~i~0.base, main_~i~0.offset, main_~j~0.base, main_~j~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~i~0.base, main_~i~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~j~0.base, main_~j~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(1, main_~j~0.base, main_~j~0.offset, 4);call write~int(10000, main_~i~0.base, main_~i~0.offset, 4); 6#L550-4true [2020-11-29 19:56:33,358 INFO L796 eck$LassoCheckResult]: Loop: 6#L550-4true call main_#t~mem6 := read~int(main_~i~0.base, main_~i~0.offset, 4);call main_#t~mem7 := read~int(main_~j~0.base, main_~j~0.offset, 4); 11#L550-1true assume !!(main_#t~mem6 - main_#t~mem7 >= 1);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~j~0.base, main_~j~0.offset, 4);main_#t~post9 := main_#t~mem8;call write~int(1 + main_#t~post9, main_~j~0.base, main_~j~0.offset, 4);havoc main_#t~mem8;havoc main_#t~post9; 5#L550-3true call main_#t~mem4 := read~int(main_~i~0.base, main_~i~0.offset, 4);main_#t~post5 := main_#t~mem4;call write~int(main_#t~post5 - 1, main_~i~0.base, main_~i~0.offset, 4);havoc main_#t~post5;havoc main_#t~mem4; 6#L550-4true [2020-11-29 19:56:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:56:33,366 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 19:56:33,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:56:33,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809012453] [2020-11-29 19:56:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:56:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:33,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:33,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:33,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:56:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:56:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 35911, now seen corresponding path program 1 times [2020-11-29 19:56:33,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:56:33,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200191097] [2020-11-29 19:56:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:56:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:33,655 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:33,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:33,697 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:56:33,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:56:33,702 INFO L82 PathProgramCache]: Analyzing trace with hash 28694853, now seen corresponding path program 1 times [2020-11-29 19:56:33,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:56:33,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642260208] [2020-11-29 19:56:33,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:56:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:33,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:33,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:33,816 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:56:34,252 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-29 19:56:34,411 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-29 19:56:34,427 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:56:34,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:56:34,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:56:34,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:56:34,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:56:34,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:56:34,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:56:34,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:56:34,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: genady-alloca.i_Iteration1_Lasso [2020-11-29 19:56:34,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:56:34,430 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:56:34,461 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 19:56:34,472 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 19:56:34,476 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 19:56:34,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:56:34,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:56:34,796 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-11-29 19:56:34,932 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-11-29 19:56:34,933 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 19:56:34,939 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 19:56:34,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:56:34,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:56:34,953 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 19:56:34,958 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 19:56:34,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:56:34,966 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 19:56:35,519 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:56:35,524 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:35,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:56:35,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:56:35,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:56:35,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:56:35,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:56:35,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:56:35,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:56:35,543 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 19:56:35,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:35,597 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 19:56:35,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:56:35,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:56:35,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:56:35,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:56:35,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:56:35,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:56:35,602 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 19:56:35,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:35,651 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 19:56:35,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:56:35,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:56:35,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:56:35,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:56:35,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:56:35,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:56:35,656 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 19:56:35,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:35,706 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 19:56:35,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:56:35,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:56:35,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:56:35,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:56:35,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:56:35,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:56:35,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:56:35,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:35,746 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 19:56:35,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:56:35,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:56:35,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:56:35,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:56:35,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:56:35,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:56:35,766 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:56:35,901 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 19:56:35,902 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e685c89-e37c-433b-97eb-859922fa0d63/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 19:56:35,968 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:56:35,971 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:56:35,971 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:56:35,972 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~j~0.base) ULTIMATE.start_main_~j~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~i~0.base) ULTIMATE.start_main_~i~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~j~0.base) ULTIMATE.start_main_~j~0.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0.base) ULTIMATE.start_main_~i~0.offset)_1 Supporting invariants [] [2020-11-29 19:56:36,049 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 19:56:36,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:56:36,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:56:36,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:56:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:36,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:56:36,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:56:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:36,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:56:36,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:56:36,329 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:56:36,330 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2020-11-29 19:56:36,336 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-29 19:56:36,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 19:56:36,346 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:56:36,435 INFO L625 ElimStorePlain]: treesize reduction 45, result has 58.3 percent of original size [2020-11-29 19:56:36,436 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 19:56:36,436 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:63 [2020-11-29 19:56:36,496 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 19:56:36,519 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:56:36,521 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2020-11-29 19:56:36,584 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 21 states and 23 transitions. Complement of second has 7 states. [2020-11-29 19:56:36,587 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 19:56:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:56:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-11-29 19:56:36,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 3 letters. [2020-11-29 19:56:36,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:56:36,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-29 19:56:36,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:56:36,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 6 letters. [2020-11-29 19:56:36,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:56:36,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 23 transitions. [2020-11-29 19:56:36,603 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:56:36,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-11-29 19:56:36,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:56:36,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:56:36,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:56:36,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:56:36,608 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:56:36,609 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:56:36,609 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:56:36,609 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:56:36,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:56:36,609 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:56:36,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:56:36,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:56:36 BoogieIcfgContainer [2020-11-29 19:56:36,619 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:56:36,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:56:36,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:56:36,620 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:56:36,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:56:33" (3/4) ... [2020-11-29 19:56:36,625 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:56:36,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:56:36,627 INFO L168 Benchmark]: Toolchain (without parser) took 4502.32 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 82.8 MB in the beginning and 86.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:36,628 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 109.1 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:36,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.67 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 75.1 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:36,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.69 ms. Allocated memory is still 109.1 MB. Free memory was 75.1 MB in the beginning and 73.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:36,632 INFO L168 Benchmark]: Boogie Preprocessor took 38.96 ms. Allocated memory is still 109.1 MB. Free memory was 73.6 MB in the beginning and 72.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:36,633 INFO L168 Benchmark]: RCFGBuilder took 422.74 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 59.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:36,635 INFO L168 Benchmark]: BuchiAutomizer took 3452.12 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 59.9 MB in the beginning and 86.5 MB in the end (delta: -26.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:36,641 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 132.1 MB. Free memory is still 86.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:36,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 109.1 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.67 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 75.1 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.69 ms. Allocated memory is still 109.1 MB. Free memory was 75.1 MB in the beginning and 73.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.96 ms. Allocated memory is still 109.1 MB. Free memory was 73.6 MB in the beginning and 72.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 422.74 ms. Allocated memory is still 109.1 MB. Free memory was 72.5 MB in the beginning and 59.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3452.12 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 59.9 MB in the beginning and 86.5 MB in the end (delta: -26.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.30 ms. Allocated memory is still 132.1 MB. Free memory is still 86.5 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 - 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 -1 * unknown-#memory_int-unknown[j][j] + unknown-#memory_int-unknown[i][i] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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, 5 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital211 mio100 ax108 hnf100 lsp89 ukn57 mio100 lsp41 div100 bol100 ite100 ukn100 eq191 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 228ms VariablesStem: 2 VariablesLoop: 4 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...