./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrcat-alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrcat-alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/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 20ffcafc6849eb5f9469bdb1ab705ebc8209d0d9 ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:02:17,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:02:17,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:02:17,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:02:17,040 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:02:17,041 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:02:17,042 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:02:17,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:02:17,044 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:02:17,045 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:02:17,046 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:02:17,046 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:02:17,047 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:02:17,047 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:02:17,048 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:02:17,049 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:02:17,050 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:02:17,051 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:02:17,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:02:17,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:02:17,054 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:02:17,055 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:02:17,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:02:17,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:02:17,056 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:02:17,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:02:17,057 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:02:17,058 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:02:17,058 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:02:17,059 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:02:17,059 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:02:17,059 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:02:17,060 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:02:17,060 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:02:17,060 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:02:17,060 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:02:17,061 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 04:02:17,073 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:02:17,073 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:02:17,074 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 04:02:17,075 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 04:02:17,075 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 04:02:17,075 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 04:02:17,075 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 04:02:17,075 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 04:02:17,076 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 04:02:17,076 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 04:02:17,076 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 04:02:17,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:02:17,076 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 04:02:17,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:02:17,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:02:17,077 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 04:02:17,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 04:02:17,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 04:02:17,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:02:17,077 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 04:02:17,078 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:02:17,078 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 04:02:17,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:02:17,078 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:02:17,078 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 04:02:17,079 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:02:17,079 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 04:02:17,079 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 04:02:17,080 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 04:02:17,080 INFO L133 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/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/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 -> 20ffcafc6849eb5f9469bdb1ab705ebc8209d0d9 [2018-11-23 04:02:17,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:02:17,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:02:17,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:02:17,119 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:02:17,119 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:02:17,120 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/cstrcat-alloca_true-termination.c.i [2018-11-23 04:02:17,163 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/data/90fa1772e/80098052eb9844ba960d05c611a5e4e6/FLAGe8eed160e [2018-11-23 04:02:17,546 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:02:17,546 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/sv-benchmarks/c/termination-memory-alloca/cstrcat-alloca_true-termination.c.i [2018-11-23 04:02:17,554 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/data/90fa1772e/80098052eb9844ba960d05c611a5e4e6/FLAGe8eed160e [2018-11-23 04:02:17,928 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/uautomizer/data/90fa1772e/80098052eb9844ba960d05c611a5e4e6 [2018-11-23 04:02:17,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:02:17,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:02:17,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:02:17,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:02:17,935 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:02:17,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:17" (1/1) ... [2018-11-23 04:02:17,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493d5e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:17, skipping insertion in model container [2018-11-23 04:02:17,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:17" (1/1) ... [2018-11-23 04:02:17,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:02:17,973 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:02:18,184 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:02:18,192 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:02:18,273 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:02:18,297 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:02:18,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18 WrapperNode [2018-11-23 04:02:18,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:02:18,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:02:18,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:02:18,298 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:02:18,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:02:18,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:02:18,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:02:18,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:02:18,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... [2018-11-23 04:02:18,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:02:18,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:02:18,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:02:18,348 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:02:18,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a65ea58-1872-42b9-8a8c-1c9a14522299/bin-2019/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 [2018-11-23 04:02:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:02:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 04:02:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 04:02:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:02:18,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:02:18,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:02:18,572 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:02:18,573 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 04:02:18,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:18 BoogieIcfgContainer [2018-11-23 04:02:18,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:02:18,574 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 04:02:18,574 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 04:02:18,577 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 04:02:18,578 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:02:18,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 04:02:17" (1/3) ... [2018-11-23 04:02:18,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f53f366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:02:18, skipping insertion in model container [2018-11-23 04:02:18,579 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:02:18,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:18" (2/3) ... [2018-11-23 04:02:18,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f53f366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:02:18, skipping insertion in model container [2018-11-23 04:02:18,580 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:02:18,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:18" (3/3) ... [2018-11-23 04:02:18,581 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca_true-termination.c.i [2018-11-23 04:02:18,620 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:02:18,620 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 04:02:18,620 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 04:02:18,620 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 04:02:18,620 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:02:18,620 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:02:18,621 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 04:02:18,621 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:02:18,621 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 04:02:18,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-23 04:02:18,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 04:02:18,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:02:18,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:02:18,658 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 04:02:18,658 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 04:02:18,658 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 04:02:18,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-23 04:02:18,660 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 04:02:18,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:02:18,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:02:18,661 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 04:02:18,661 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 04:02:18,669 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 14#L560true assume !(main_~length1~0 < 1); 3#L560-2true assume !(main_~length2~0 < 2); 11#L563-1true assume !(main_~length3~0 < 1); 5#L566-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 4#L550-3true [2018-11-23 04:02:18,670 INFO L796 eck$LassoCheckResult]: Loop: 4#L550-3true call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 16#L550-1true assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 4#L550-3true [2018-11-23 04:02:18,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:18,675 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2018-11-23 04:02:18,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:02:18,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:02:18,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:18,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:18,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:02:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:02:18,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:18,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-11-23 04:02:18,789 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:02:18,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:02:18,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:18,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:18,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:02:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:02:18,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:18,797 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2018-11-23 04:02:18,798 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:02:18,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:02:18,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:18,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:18,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:02:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:02:19,137 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2018-11-23 04:02:19,261 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2018-11-23 04:02:19,273 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:02:19,274 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:02:19,274 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:02:19,274 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:02:19,275 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:02:19,275 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:02:19,275 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:02:19,275 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:02:19,275 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-23 04:02:19,275 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:02:19,276 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:02:19,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,548 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-11-23 04:02:19,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:02:19,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:02:19,929 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:02:19,930 INFO L122 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 [2018-11-23 04:02:19,932 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:02:19,932 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:02:19,932 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:02:19,932 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:02:19,935 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:02:19,935 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:02:19,952 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:02:19,953 INFO L122 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 [2018-11-23 04:02:19,954 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:02:19,954 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:02:19,954 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:02:19,954 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:02:19,961 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:02:19,961 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:02:20,001 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:02:20,023 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:02:20,023 INFO L444 ModelExtractionUtils]: 33 out of 37 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:02:20,025 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:02:20,027 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 04:02:20,027 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:02:20,027 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2018-11-23 04:02:20,060 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2018-11-23 04:02:20,066 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 04:02:20,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:20,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:20,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:20,140 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 [2018-11-23 04:02:20,141 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-11-23 04:02:20,189 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 8 states. [2018-11-23 04:02:20,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:02:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:02:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-11-23 04:02:20,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-23 04:02:20,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:02:20,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-23 04:02:20,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:02:20,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-23 04:02:20,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:02:20,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2018-11-23 04:02:20,197 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:02:20,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2018-11-23 04:02:20,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 04:02:20,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 04:02:20,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 04:02:20,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:02:20,201 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:02:20,201 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:02:20,202 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:02:20,202 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 04:02:20,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:02:20,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:02:20,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 04:02:20,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 04:02:20 BoogieIcfgContainer [2018-11-23 04:02:20,207 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 04:02:20,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:02:20,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:02:20,207 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:02:20,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:18" (3/4) ... [2018-11-23 04:02:20,210 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:02:20,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:02:20,211 INFO L168 Benchmark]: Toolchain (without parser) took 2279.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.4 MB in the beginning and 848.4 MB in the end (delta: 108.1 MB). Peak memory consumption was 259.6 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:20,211 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:02:20,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:20,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:20,213 INFO L168 Benchmark]: Boogie Preprocessor took 16.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:02:20,214 INFO L168 Benchmark]: RCFGBuilder took 224.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:20,215 INFO L168 Benchmark]: BuchiAutomizer took 1633.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.4 MB in the end (delta: 260.3 MB). Peak memory consumption was 260.3 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:20,215 INFO L168 Benchmark]: Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 848.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:02:20,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 365.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -183.0 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 224.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1633.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.4 MB in the end (delta: 260.3 MB). Peak memory consumption was 260.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 848.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 16 SDtfs, 17 SDslu, 7 SDs, 0 SdLazy, 7 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital185 mio100 ax109 hnf98 lsp87 ukn77 mio100 lsp40 div100 bol100 ite100 ukn100 eq182 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 2 VariablesLoop: 3 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...