./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/array-memsafety/strreplace-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 50bdaf600d03af0a677a59daf6a875dbe69c10b2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 20:26:24,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:26:24,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:26:24,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:26:24,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:26:24,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:26:24,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:26:24,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:26:24,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:26:24,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:26:24,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:26:24,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:26:24,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:26:24,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:26:24,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:26:24,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:26:24,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:26:24,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:26:24,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:26:24,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:26:24,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:26:24,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:26:24,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:26:24,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:26:24,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:26:24,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:26:24,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:26:24,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:26:24,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:26:24,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:26:24,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:26:24,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:26:24,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:26:24,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:26:24,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:26:24,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:26:24,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:26:24,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:26:24,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:26:24,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:26:24,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:26:24,998 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:26:25,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:26:25,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:26:25,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:26:25,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:26:25,049 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:26:25,049 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:26:25,050 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:26:25,050 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:26:25,050 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:26:25,051 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:26:25,052 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:26:25,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:26:25,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:26:25,053 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:26:25,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:26:25,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:26:25,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:26:25,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:26:25,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:26:25,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:26:25,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:26:25,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:26:25,055 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:26:25,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:26:25,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:26:25,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:26:25,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:26:25,057 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:26:25,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:26:25,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:26:25,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:26:25,058 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:26:25,060 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:26:25,060 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50bdaf600d03af0a677a59daf6a875dbe69c10b2 [2020-10-19 20:26:25,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:26:25,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:26:25,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:26:25,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:26:25,452 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:26:25,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i [2020-10-19 20:26:25,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69055a969/b91f8c1241bb44079a848494a971672f/FLAG74f7ce04b [2020-10-19 20:26:26,106 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:26:26,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i [2020-10-19 20:26:26,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69055a969/b91f8c1241bb44079a848494a971672f/FLAG74f7ce04b [2020-10-19 20:26:26,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69055a969/b91f8c1241bb44079a848494a971672f [2020-10-19 20:26:26,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:26:26,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:26:26,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:26:26,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:26:26,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:26:26,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:26:26" (1/1) ... [2020-10-19 20:26:26,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b9aade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:26, skipping insertion in model container [2020-10-19 20:26:26,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:26:26" (1/1) ... [2020-10-19 20:26:26,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:26:26,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:26:26,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:26:26,924 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:26:26,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:26:27,034 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:26:27,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27 WrapperNode [2020-10-19 20:26:27,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:26:27,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:26:27,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:26:27,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:26:27,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:26:27,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:26:27,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:26:27,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:26:27,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:26:27,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:26:27,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:26:27,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:26:27,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (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 [2020-10-19 20:26:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 20:26:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 20:26:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:26:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 20:26:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:26:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:26:27,483 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:26:27,483 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 20:26:27,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:26:27 BoogieIcfgContainer [2020-10-19 20:26:27,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:26:27,486 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:26:27,486 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:26:27,490 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:26:27,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:26:27,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:26:26" (1/3) ... [2020-10-19 20:26:27,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13a1a2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:26:27, skipping insertion in model container [2020-10-19 20:26:27,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:26:27,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (2/3) ... [2020-10-19 20:26:27,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13a1a2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:26:27, skipping insertion in model container [2020-10-19 20:26:27,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:26:27,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:26:27" (3/3) ... [2020-10-19 20:26:27,495 INFO L373 chiAutomizerObserver]: Analyzing ICFG strreplace-alloca-2.i [2020-10-19 20:26:27,547 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:26:27,547 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:26:27,547 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:26:27,548 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:26:27,548 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:26:27,548 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:26:27,548 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:26:27,549 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:26:27,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-19 20:26:27,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:26:27,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:27,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:27,597 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 20:26:27,598 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:26:27,598 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:26:27,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-19 20:26:27,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:26:27,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:27,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:27,600 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 20:26:27,600 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:26:27,609 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 17#L528true assume !(main_~length1~0 < 1); 5#L528-2true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 12#L533-3true [2020-10-19 20:26:27,610 INFO L796 eck$LassoCheckResult]: Loop: 12#L533-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet9, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 11#L533-2true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 12#L533-3true [2020-10-19 20:26:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:27,617 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-19 20:26:27,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:27,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570046579] [2020-10-19 20:26:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:27,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:27,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:27,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:27,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:27,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2020-10-19 20:26:27,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:27,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69080065] [2020-10-19 20:26:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:27,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:27,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:27,803 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:27,806 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2020-10-19 20:26:27,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:27,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390276519] [2020-10-19 20:26:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:27,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:27,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:27,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:28,119 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:26:28,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:26:28,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:26:28,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:26:28,121 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:26:28,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:26:28,121 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:26:28,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-2.i_Iteration1_Lasso [2020-10-19 20:26:28,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:26:28,122 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:26:28,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,593 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:26:28,597 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 [2020-10-19 20:26:28,602 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 [2020-10-19 20:26:28,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:28,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:28,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:28,613 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 [2020-10-19 20:26:28,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:28,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:28,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:28,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:28,646 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) [2020-10-19 20:26:28,682 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 [2020-10-19 20:26:28,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:28,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:28,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,689 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 [2020-10-19 20:26:28,717 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 [2020-10-19 20:26:28,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:28,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:28,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:28,724 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,747 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 [2020-10-19 20:26:28,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:28,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:28,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:28,754 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,790 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 [2020-10-19 20:26:28,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:28,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:28,805 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,835 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 [2020-10-19 20:26:28,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:28,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:28,848 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 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,875 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 [2020-10-19 20:26:28,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:28,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:28,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:28,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:28,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:28,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:28,908 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:26:28,957 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-19 20:26:28,957 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:28,972 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,977 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:26:28,977 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:26:28,978 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-19 20:26:29,038 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-10-19 20:26:29,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:29,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:26:29,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:29,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:26:29,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:29,166 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:26:29,167 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-10-19 20:26:29,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 38 states and 51 transitions. Complement of second has 7 states. [2020-10-19 20:26:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:26:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:26:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-10-19 20:26:29,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 20:26:29,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:29,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-19 20:26:29,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:29,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 4 letters. [2020-10-19 20:26:29,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:29,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2020-10-19 20:26:29,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:26:29,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 12 states and 16 transitions. [2020-10-19 20:26:29,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 20:26:29,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 20:26:29,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-10-19 20:26:29,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:29,278 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 20:26:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-10-19 20:26:29,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 20:26:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 20:26:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-10-19 20:26:29,316 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 20:26:29,316 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 20:26:29,316 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:26:29,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-10-19 20:26:29,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:26:29,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:29,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:29,319 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 20:26:29,319 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:26:29,320 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 115#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 116#L528 assume !(main_~length1~0 < 1); 117#L528-2 call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 118#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 122#L533-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet10 % 256 <= 127 then main_#t~nondet10 % 256 else main_#t~nondet10 % 256 - 256), (if main_#t~nondet11 % 256 <= 127 then main_#t~nondet11 % 256 else main_#t~nondet11 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 112#L517-3 [2020-10-19 20:26:29,321 INFO L796 eck$LassoCheckResult]: Loop: 112#L517-3 call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 113#L517-1 assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 114#L518 assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 111#L518-2 cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 112#L517-3 [2020-10-19 20:26:29,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,321 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2020-10-19 20:26:29,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:29,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573812089] [2020-10-19 20:26:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,444 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1790538, now seen corresponding path program 1 times [2020-10-19 20:26:29,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:29,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367080647] [2020-10-19 20:26:29,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,478 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:29,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1952978730, now seen corresponding path program 1 times [2020-10-19 20:26:29,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:29,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120126851] [2020-10-19 20:26:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:29,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120126851] [2020-10-19 20:26:29,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:26:29,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 20:26:29,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290020318] [2020-10-19 20:26:29,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:26:29,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 20:26:29,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 20:26:29,722 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 7 states. [2020-10-19 20:26:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:26:29,831 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-10-19 20:26:29,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 20:26:29,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2020-10-19 20:26:29,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:26:29,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 16 transitions. [2020-10-19 20:26:29,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 20:26:29,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 20:26:29,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2020-10-19 20:26:29,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:29,835 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-19 20:26:29,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2020-10-19 20:26:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-10-19 20:26:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 20:26:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-10-19 20:26:29,837 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-19 20:26:29,837 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-19 20:26:29,837 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:26:29,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-10-19 20:26:29,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:26:29,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:29,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:29,839 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:29,839 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:26:29,839 INFO L794 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 157#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 158#L528 assume !(main_~length1~0 < 1); 163#L528-2 call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 164#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet9, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 166#L533-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 167#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 168#L533-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet10 % 256 <= 127 then main_#t~nondet10 % 256 else main_#t~nondet10 % 256 - 256), (if main_#t~nondet11 % 256 <= 127 then main_#t~nondet11 % 256 else main_#t~nondet11 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 162#L517-3 [2020-10-19 20:26:29,840 INFO L796 eck$LassoCheckResult]: Loop: 162#L517-3 call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 159#L517-1 assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 160#L518 assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 161#L518-2 cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 162#L517-3 [2020-10-19 20:26:29,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,840 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2020-10-19 20:26:29,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:29,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17427574] [2020-10-19 20:26:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,878 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:29,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1790538, now seen corresponding path program 2 times [2020-10-19 20:26:29,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:29,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144827784] [2020-10-19 20:26:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,893 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash -357903304, now seen corresponding path program 1 times [2020-10-19 20:26:29,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:29,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596652633] [2020-10-19 20:26:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:29,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:29,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:30,330 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2020-10-19 20:26:31,737 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 104 [2020-10-19 20:26:31,740 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:26:31,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:26:31,740 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:26:31,740 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:26:31,741 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:26:31,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:31,741 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:26:31,741 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:26:31,741 INFO L133 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-2.i_Iteration3_Lasso [2020-10-19 20:26:31,741 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:26:31,741 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:26:31,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,850 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-10-19 20:26:32,655 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-19 20:26:32,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:32,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:33,428 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-10-19 20:26:33,478 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:26:33,479 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,490 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 [2020-10-19 20:26:33,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:33,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:33,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:33,500 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:33,538 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 [2020-10-19 20:26:33,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:33,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:33,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,543 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 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,570 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 [2020-10-19 20:26:33,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:33,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:33,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:33,577 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,615 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 [2020-10-19 20:26:33,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,619 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:33,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,623 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:33,663 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 [2020-10-19 20:26:33,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:33,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,673 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,704 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 [2020-10-19 20:26:33,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:33,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,722 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,750 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 [2020-10-19 20:26:33,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:33,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:33,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:33,754 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,778 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 [2020-10-19 20:26:33,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:33,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:33,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:33,783 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,813 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 [2020-10-19 20:26:33,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:33,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,821 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,843 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 [2020-10-19 20:26:33,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:33,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:33,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:33,847 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,879 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 [2020-10-19 20:26:33,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:33,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,897 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,925 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 [2020-10-19 20:26:33,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,927 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 20:26:33,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,933 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 20:26:33,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,939 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:33,963 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 Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:33,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:33,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:33,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:33,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:33,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:33,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:33,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:26:34,032 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-10-19 20:26:34,032 INFO L444 ModelExtractionUtils]: 18 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:34,038 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:34,042 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:26:34,042 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:26:34,042 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrreplace_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_2) = -1*ULTIMATE.start_cstrreplace_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_2 Supporting invariants [] [2020-10-19 20:26:34,092 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-10-19 20:26:34,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:26:34,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:34,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 20:26:34,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:34,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 20:26:34,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:34,176 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 [2020-10-19 20:26:34,176 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 20:26:34,227 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2020-10-19 20:26:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 20:26:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 20:26:34,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-10-19 20:26:34,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-19 20:26:34,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:34,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 4 letters. [2020-10-19 20:26:34,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:34,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 8 letters. [2020-10-19 20:26:34,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:34,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2020-10-19 20:26:34,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:26:34,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-10-19 20:26:34,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:26:34,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:26:34,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:26:34,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:34,233 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:34,233 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:34,233 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:34,233 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:26:34,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:26:34,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:26:34,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:26:34,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:26:34 BoogieIcfgContainer [2020-10-19 20:26:34,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:26:34,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:26:34,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:26:34,239 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:26:34,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:26:27" (3/4) ... [2020-10-19 20:26:34,243 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:26:34,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:26:34,245 INFO L168 Benchmark]: Toolchain (without parser) took 7863.50 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 293.6 MB). Free memory was 954.6 MB in the beginning and 1.2 GB in the end (delta: -237.9 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:34,245 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:34,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:34,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.49 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:34,247 INFO L168 Benchmark]: Boogie Preprocessor took 27.37 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. [2020-10-19 20:26:34,248 INFO L168 Benchmark]: RCFGBuilder took 372.75 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:34,249 INFO L168 Benchmark]: BuchiAutomizer took 6752.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.5 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:34,249 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:34,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 647.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.49 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.37 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 372.75 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6752.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 155.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.5 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.88 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 51 SDslu, 47 SDs, 0 SdLazy, 55 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital337 mio100 ax111 hnf98 lsp130 ukn60 mio100 lsp38 div118 bol100 ite100 ukn100 eq163 hnf81 smp96 dnf147 smp76 tf100 neg98 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 5 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...