./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/cstrlen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/cstrlen.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1e3ef20869762bcfb9d8151d96b8065864cd760e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:15:38,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:15:38,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:15:38,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:15:38,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:15:38,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:15:38,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:15:38,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:15:38,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:15:38,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:15:38,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:15:38,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:15:38,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:15:38,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:15:38,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:15:38,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:15:38,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:15:38,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:15:38,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:15:38,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:15:38,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:15:38,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:15:38,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:15:38,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:15:38,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:15:38,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:15:38,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:15:38,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:15:38,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:15:38,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:15:38,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:15:38,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:15:38,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:15:38,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:15:38,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:15:38,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:15:38,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:15:38,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:15:38,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:15:38,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:15:38,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:15:38,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:15:39,027 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:15:39,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:15:39,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:15:39,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:15:39,029 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:15:39,030 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:15:39,030 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:15:39,030 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:15:39,030 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:15:39,031 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:15:39,031 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:15:39,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:15:39,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:15:39,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:15:39,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:15:39,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:15:39,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:15:39,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:15:39,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:15:39,033 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:15:39,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:15:39,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:15:39,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:15:39,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:15:39,034 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:15:39,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:15:39,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:15:39,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:15:39,035 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:15:39,036 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:15:39,036 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2020-10-26 04:15:39,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:15:39,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:15:39,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:15:39,508 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:15:39,508 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:15:39,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2020-10-26 04:15:39,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237edcad9/b39fb10ff80540dc835aead83d94b576/FLAG70645dac0 [2020-10-26 04:15:40,303 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:15:40,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2020-10-26 04:15:40,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237edcad9/b39fb10ff80540dc835aead83d94b576/FLAG70645dac0 [2020-10-26 04:15:40,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237edcad9/b39fb10ff80540dc835aead83d94b576 [2020-10-26 04:15:40,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:15:40,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:15:40,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:15:40,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:15:40,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:15:40,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250caf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40, skipping insertion in model container [2020-10-26 04:15:40,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:15:40,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:15:40,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:15:40,855 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:15:40,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:15:40,888 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:15:40,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40 WrapperNode [2020-10-26 04:15:40,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:15:40,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:15:40,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:15:40,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:15:40,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:15:40,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:15:40,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:15:40,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:15:40,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... [2020-10-26 04:15:40,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:15:40,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:15:40,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:15:40,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:15:40,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:15:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:15:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 04:15:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:15:41,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:15:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:15:41,267 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:15:41,267 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-26 04:15:41,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:15:41 BoogieIcfgContainer [2020-10-26 04:15:41,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:15:41,270 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:15:41,271 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:15:41,274 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:15:41,279 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:15:41,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:15:40" (1/3) ... [2020-10-26 04:15:41,281 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9ecd16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:15:41, skipping insertion in model container [2020-10-26 04:15:41,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:15:41,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:15:40" (2/3) ... [2020-10-26 04:15:41,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9ecd16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:15:41, skipping insertion in model container [2020-10-26 04:15:41,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:15:41,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:15:41" (3/3) ... [2020-10-26 04:15:41,285 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrlen.c [2020-10-26 04:15:41,351 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:15:41,352 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:15:41,352 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:15:41,352 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:15:41,352 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:15:41,352 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:15:41,353 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:15:41,353 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:15:41,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-26 04:15:41,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:15:41,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:15:41,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:15:41,425 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:15:41,425 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:15:41,426 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:15:41,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-26 04:15:41,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:15:41,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:15:41,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:15:41,428 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:15:41,428 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:15:41,454 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 13#L14true assume !(build_nondet_String_~length~0 < 1); 8#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 11#L19true main_#t~ret4.base, main_#t~ret4.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrlen_#in~s.base, cstrlen_#in~s.offset := main_#t~ret4.base, main_#t~ret4.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L30-3true [2020-10-26 04:15:41,455 INFO L796 eck$LassoCheckResult]: Loop: 7#L30-3true call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 10#L30-1true assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 7#L30-3true [2020-10-26 04:15:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:41,470 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2020-10-26 04:15:41,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:15:41,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459789170] [2020-10-26 04:15:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:15:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:41,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:41,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:41,686 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:15:41,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:41,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1478, now seen corresponding path program 1 times [2020-10-26 04:15:41,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:15:41,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944296834] [2020-10-26 04:15:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:15:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:41,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:41,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:41,723 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:15:41,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:41,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812491, now seen corresponding path program 1 times [2020-10-26 04:15:41,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:15:41,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354445098] [2020-10-26 04:15:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:15:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:41,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:15:41,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:15:41,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:15:42,173 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-26 04:15:42,284 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:15:42,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:15:42,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:15:42,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:15:42,286 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:15:42,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:42,286 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:15:42,286 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:15:42,286 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen.c_Iteration1_Lasso [2020-10-26 04:15:42,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:15:42,287 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:15:42,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,552 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-26 04:15:42,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:42,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:15:43,157 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2020-10-26 04:15:43,196 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:15:43,202 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,208 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 [2020-10-26 04:15:43,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:15:43,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:43,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:15:43,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:15:43,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,261 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 [2020-10-26 04:15:43,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:15:43,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:43,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:15:43,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:15:43,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,298 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 [2020-10-26 04:15:43,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:43,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:15:43,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:15:43,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,355 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 [2020-10-26 04:15:43,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:15:43,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:43,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:15:43,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:15:43,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:15:43,405 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 [2020-10-26 04:15:43,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:15:43,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:43,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:15:43,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:15:43,462 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 [2020-10-26 04:15:43,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:15:43,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:15:43,471 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:15:43,527 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 [2020-10-26 04:15:43,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:15:43,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:15:43,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:15:43,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:15:43,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:15:43,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:15:43,618 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-26 04:15:43,618 INFO L444 ModelExtractionUtils]: 9 out of 34 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:15:43,627 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:15:43,634 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:15:43,634 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:15:43,635 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_build_nondet_String_#t~malloc1.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_build_nondet_String_#t~malloc1.base)_1 Supporting invariants [] [2020-10-26 04:15:43,684 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-10-26 04:15:43,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:15:43,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:15:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:15:43,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-26 04:15:43,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:15:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:15:43,784 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:15:43,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:15:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:15:43,824 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 04:15:43,826 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2020-10-26 04:15:43,966 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 24 states and 27 transitions. Complement of second has 6 states. [2020-10-26 04:15:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:15:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:15:43,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-10-26 04:15:43,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-26 04:15:43,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:15:43,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-26 04:15:43,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:15:43,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-26 04:15:43,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:15:43,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2020-10-26 04:15:43,978 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:15:43,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-10-26 04:15:43,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:15:43,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:15:43,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:15:43,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:15:43,984 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:15:43,984 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:15:43,984 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:15:43,985 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:15:43,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:15:43,985 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:15:43,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:15:43,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:15:43 BoogieIcfgContainer [2020-10-26 04:15:43,992 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:15:43,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:15:43,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:15:43,993 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:15:43,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:15:41" (3/4) ... [2020-10-26 04:15:43,998 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:15:43,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:15:44,000 INFO L168 Benchmark]: Toolchain (without parser) took 3365.17 ms. Allocated memory was 46.1 MB in the beginning and 83.9 MB in the end (delta: 37.7 MB). Free memory was 31.3 MB in the beginning and 59.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:44,001 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:15:44,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.62 ms. Allocated memory is still 46.1 MB. Free memory was 30.6 MB in the beginning and 21.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:44,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.80 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 20.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:15:44,004 INFO L168 Benchmark]: Boogie Preprocessor took 34.00 ms. Allocated memory is still 46.1 MB. Free memory was 20.1 MB in the beginning and 30.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:44,005 INFO L168 Benchmark]: RCFGBuilder took 305.82 ms. Allocated memory is still 46.1 MB. Free memory was 30.8 MB in the beginning and 19.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:15:44,006 INFO L168 Benchmark]: BuchiAutomizer took 2721.62 ms. Allocated memory was 46.1 MB in the beginning and 83.9 MB in the end (delta: 37.7 MB). Free memory was 19.7 MB in the beginning and 60.0 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:15:44,006 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 83.9 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:15:44,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 248.62 ms. Allocated memory is still 46.1 MB. Free memory was 30.6 MB in the beginning and 21.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.80 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 20.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.00 ms. Allocated memory is still 46.1 MB. Free memory was 20.1 MB in the beginning and 30.8 MB in the end (delta: -10.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 305.82 ms. Allocated memory is still 46.1 MB. Free memory was 30.8 MB in the beginning and 19.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2721.62 ms. Allocated memory was 46.1 MB in the beginning and 83.9 MB in the end (delta: 37.7 MB). Free memory was 19.7 MB in the beginning and 60.0 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.39 ms. Allocated memory is still 83.9 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 * p + unknown-#length-unknown[malloc(length * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 7 SDs, 0 SdLazy, 7 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital129 mio100 ax100 hnf99 lsp95 ukn92 mio100 lsp45 div100 bol100 ite100 ukn100 eq198 hnf88 smp100 dnf128 smp94 tf100 neg98 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...