./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/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 ccb5cb9edc315122662555ec62bb7adf5b85f05c ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:39:20,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:39:20,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:39:20,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:39:20,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:39:20,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:39:20,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:39:20,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:39:20,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:39:20,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:39:20,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:39:20,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:39:20,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:39:20,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:39:20,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:39:20,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:39:20,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:39:20,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:39:20,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:39:20,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:39:20,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:39:20,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:39:20,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:39:20,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:39:20,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:39:20,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:39:20,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:39:20,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:39:20,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:39:20,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:39:20,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:39:20,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:39:20,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:39:20,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:39:20,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:39:20,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:39:20,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:39:20,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:39:20,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:39:20,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:39:20,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:39:20,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 17:39:20,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:39:20,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:39:20,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:39:20,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:39:20,058 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:39:20,058 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:39:20,058 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:39:20,058 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:39:20,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:39:20,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:39:20,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:39:20,060 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:39:20,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:39:20,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:39:20,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:39:20,061 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:39:20,061 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:39:20,061 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_d85f38a9-a723-4752-a8aa-006f38363d93/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 -> ccb5cb9edc315122662555ec62bb7adf5b85f05c [2019-12-07 17:39:20,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:39:20,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:39:20,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:39:20,172 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:39:20,172 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:39:20,173 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2019-12-07 17:39:20,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/data/d3ca597e9/9405653a47a84f608921655084814528/FLAG8609a89db [2019-12-07 17:39:20,640 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:39:20,641 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2019-12-07 17:39:20,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/data/d3ca597e9/9405653a47a84f608921655084814528/FLAG8609a89db [2019-12-07 17:39:20,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/data/d3ca597e9/9405653a47a84f608921655084814528 [2019-12-07 17:39:20,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:39:20,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:39:20,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:39:20,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:39:20,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:39:20,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:39:20" (1/1) ... [2019-12-07 17:39:20,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bf35b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:20, skipping insertion in model container [2019-12-07 17:39:20,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:39:20" (1/1) ... [2019-12-07 17:39:20,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:39:20,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:39:20,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:39:20,938 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:39:20,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:39:21,003 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:39:21,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21 WrapperNode [2019-12-07 17:39:21,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:39:21,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:39:21,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:39:21,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:39:21,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:39:21,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:39:21,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:39:21,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:39:21,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... [2019-12-07 17:39:21,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:39:21,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:39:21,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:39:21,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:39:21,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/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 [2019-12-07 17:39:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:39:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:39:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:39:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:39:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:39:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:39:21,207 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:39:21,207 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:39:21,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:39:21 BoogieIcfgContainer [2019-12-07 17:39:21,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:39:21,209 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:39:21,209 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:39:21,211 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:39:21,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:39:21,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:39:20" (1/3) ... [2019-12-07 17:39:21,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26b8521c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:39:21, skipping insertion in model container [2019-12-07 17:39:21,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:39:21,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:39:21" (2/3) ... [2019-12-07 17:39:21,213 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26b8521c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:39:21, skipping insertion in model container [2019-12-07 17:39:21,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:39:21,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:39:21" (3/3) ... [2019-12-07 17:39:21,214 INFO L371 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2019-12-07 17:39:21,242 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:39:21,242 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:39:21,242 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:39:21,242 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:39:21,242 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:39:21,242 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:39:21,243 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:39:21,243 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:39:21,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-12-07 17:39:21,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:39:21,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:39:21,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:39:21,269 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:39:21,269 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:39:21,269 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:39:21,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-12-07 17:39:21,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 17:39:21,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:39:21,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:39:21,270 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:39:21,270 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 17:39:21,277 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 5#L549-2true [2019-12-07 17:39:21,277 INFO L796 eck$LassoCheckResult]: Loop: 5#L549-2true call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6#L548-1true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3;call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 11#L549true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 5#L549-2true [2019-12-07 17:39:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:39:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 17:39:21,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:39:21,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072135744] [2019-12-07 17:39:21,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:39:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:39:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:39:21,366 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:39:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:39:21,367 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2019-12-07 17:39:21,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:39:21,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415560214] [2019-12-07 17:39:21,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:39:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:39:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:39:21,383 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:39:21,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:39:21,385 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2019-12-07 17:39:21,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:39:21,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359464808] [2019-12-07 17:39:21,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:39:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:39:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:39:21,406 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:39:21,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:39:21 BoogieIcfgContainer [2019-12-07 17:39:21,548 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:39:21,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:39:21,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:39:21,549 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:39:21,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:39:21" (3/4) ... [2019-12-07 17:39:21,552 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:39:21,578 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d85f38a9-a723-4752-a8aa-006f38363d93/bin/uautomizer/witness.graphml [2019-12-07 17:39:21,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:39:21,581 INFO L168 Benchmark]: Toolchain (without parser) took 918.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -83.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:39:21,581 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:39:21,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:39:21,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:39:21,582 INFO L168 Benchmark]: Boogie Preprocessor took 15.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:39:21,583 INFO L168 Benchmark]: RCFGBuilder took 161.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:39:21,583 INFO L168 Benchmark]: BuchiAutomizer took 339.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:39:21,584 INFO L168 Benchmark]: Witness Printer took 30.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:39:21,586 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 161.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 339.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 30.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@21b06b79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c98a346=2, NULL=0, NULL=0, x=2, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c98a346=0, x=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@70268823=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@20436bb7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...