./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/cstrlen-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 a9da884533d6d47d95abcc742a22337ea753025b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:18:01,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:18:01,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:18:01,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:18:01,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:18:01,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:18:01,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:18:01,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:18:01,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:18:01,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:18:01,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:18:01,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:18:01,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:18:01,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:18:01,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:18:01,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:18:01,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:18:01,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:18:01,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:18:01,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:18:01,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:18:01,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:18:01,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:18:01,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:18:01,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:18:01,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:18:01,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:18:01,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:18:01,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:18:01,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:18:01,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:18:01,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:18:01,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:18:01,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:18:01,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:18:01,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:18:01,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:18:01,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:18:01,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:18:01,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:18:01,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:18:01,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:18:01,946 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:18:01,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:18:01,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:18:01,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:18:01,948 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:18:01,948 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:18:01,948 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:18:01,948 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:18:01,948 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:18:01,948 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:18:01,949 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:18:01,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:18:01,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:18:01,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:18:01,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:18:01,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:18:01,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:18:01,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:18:01,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:18:01,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:18:01,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:18:01,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:18:01,951 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:18:01,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:18:01,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:18:01,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:18:01,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:18:01,952 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:18:01,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:18:01,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:18:01,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:18:01,953 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:18:01,954 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:18:01,954 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 -> a9da884533d6d47d95abcc742a22337ea753025b [2020-10-20 08:18:02,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:18:02,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:18:02,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:18:02,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:18:02,182 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:18:02,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2020-10-20 08:18:02,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ae94419/266f48dea742429abe403aa3737bdc51/FLAGeb0298ca5 [2020-10-20 08:18:02,876 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:18:02,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2020-10-20 08:18:02,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ae94419/266f48dea742429abe403aa3737bdc51/FLAGeb0298ca5 [2020-10-20 08:18:03,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8ae94419/266f48dea742429abe403aa3737bdc51 [2020-10-20 08:18:03,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:18:03,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:18:03,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:18:03,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:18:03,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:18:03,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d79bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03, skipping insertion in model container [2020-10-20 08:18:03,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:18:03,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:18:03,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:18:03,637 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:18:03,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:18:03,757 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:18:03,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03 WrapperNode [2020-10-20 08:18:03,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:18:03,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:18:03,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:18:03,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:18:03,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:18:03,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:18:03,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:18:03,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:18:03,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (1/1) ... [2020-10-20 08:18:03,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:18:03,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:18:03,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:18:03,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:18:03,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (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 [2020-10-20 08:18:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 08:18:03,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 08:18:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:18:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 08:18:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:18:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:18:04,224 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:18:04,224 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 08:18:04,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:04 BoogieIcfgContainer [2020-10-20 08:18:04,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:18:04,227 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:18:04,227 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:18:04,230 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:18:04,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:04,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:18:03" (1/3) ... [2020-10-20 08:18:04,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68f0685c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:18:04, skipping insertion in model container [2020-10-20 08:18:04,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:04,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:18:03" (2/3) ... [2020-10-20 08:18:04,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68f0685c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:18:04, skipping insertion in model container [2020-10-20 08:18:04,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:18:04,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:04" (3/3) ... [2020-10-20 08:18:04,236 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-2.i [2020-10-20 08:18:04,293 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:18:04,293 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:18:04,293 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:18:04,293 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:18:04,294 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:18:04,294 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:18:04,294 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:18:04,294 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:18:04,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-20 08:18:04,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:04,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:04,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:04,335 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 08:18:04,335 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:04,335 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:18:04,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-20 08:18:04,337 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:18:04,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:04,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:04,338 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 08:18:04,338 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:04,345 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L522true assume !(main_~length1~0 < 1); 13#L522-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 5#L527-3true [2020-10-20 08:18:04,345 INFO L796 eck$LassoCheckResult]: Loop: 5#L527-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4#L527-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5#L527-3true [2020-10-20 08:18:04,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,351 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-20 08:18:04,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:04,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741328741] [2020-10-20 08:18:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,501 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2020-10-20 08:18:04,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:04,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875714321] [2020-10-20 08:18:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,525 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:04,527 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2020-10-20 08:18:04,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:04,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527035197] [2020-10-20 08:18:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:04,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:04,603 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:04,841 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:04,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:04,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:04,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:04,842 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:04,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:04,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:04,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:04,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration1_Lasso [2020-10-20 08:18:04,843 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:04,843 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:04,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:04,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:04,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:04,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:04,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:04,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:05,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:05,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:05,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:05,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:05,344 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:05,350 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 [2020-10-20 08:18:05,358 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 [2020-10-20 08:18:05,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:05,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:05,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:05,367 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 [2020-10-20 08:18:05,396 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 [2020-10-20 08:18:05,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:05,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:05,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:05,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:05,471 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 [2020-10-20 08:18:05,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:05,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:05,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:05,477 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 [2020-10-20 08:18:05,505 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 [2020-10-20 08:18:05,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:05,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:05,526 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 [2020-10-20 08:18:05,554 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 [2020-10-20 08:18:05,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:05,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:05,574 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 [2020-10-20 08:18:05,601 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 [2020-10-20 08:18:05,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:05,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:05,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:05,617 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 [2020-10-20 08:18:05,641 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 [2020-10-20 08:18:05,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:05,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:05,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:05,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:05,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:05,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:05,671 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:05,717 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-20 08:18:05,717 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:05,746 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:05,757 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:05,757 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:05,758 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 [] [2020-10-20 08:18:05,802 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-10-20 08:18:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:05,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:18:05,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:05,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:18:05,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:05,898 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 [2020-10-20 08:18:05,900 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2020-10-20 08:18:05,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 7 states. [2020-10-20 08:18:05,954 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 [2020-10-20 08:18:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:18:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2020-10-20 08:18:05,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 08:18:05,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:05,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-20 08:18:05,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:05,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 4 letters. [2020-10-20 08:18:05,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:05,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2020-10-20 08:18:05,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:18:05,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 10 states and 13 transitions. [2020-10-20 08:18:05,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-20 08:18:05,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-20 08:18:05,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-10-20 08:18:05,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:05,973 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-20 08:18:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-10-20 08:18:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-20 08:18:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 08:18:06,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-10-20 08:18:06,002 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-20 08:18:06,003 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-20 08:18:06,003 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:18:06,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-10-20 08:18:06,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:18:06,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:06,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:06,004 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 08:18:06,005 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:06,005 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 103#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 104#L522 assume !(main_~length1~0 < 1); 108#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 109#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 112#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 106#L516-3 [2020-10-20 08:18:06,005 INFO L796 eck$LassoCheckResult]: Loop: 106#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 105#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 106#L516-3 [2020-10-20 08:18:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,006 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2020-10-20 08:18:06,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047148866] [2020-10-20 08:18:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,064 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 1 times [2020-10-20 08:18:06,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469995238] [2020-10-20 08:18:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,082 INFO L82 PathProgramCache]: Analyzing trace with hash 176738514, now seen corresponding path program 1 times [2020-10-20 08:18:06,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192902312] [2020-10-20 08:18:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:06,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192902312] [2020-10-20 08:18:06,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:18:06,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 08:18:06,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924976807] [2020-10-20 08:18:06,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:18:06,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 08:18:06,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 08:18:06,285 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 7 states. [2020-10-20 08:18:06,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:18:06,406 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-20 08:18:06,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 08:18:06,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-10-20 08:18:06,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:18:06,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 13 transitions. [2020-10-20 08:18:06,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-20 08:18:06,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-20 08:18:06,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2020-10-20 08:18:06,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:06,410 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-20 08:18:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2020-10-20 08:18:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-10-20 08:18:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 08:18:06,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-10-20 08:18:06,412 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-20 08:18:06,412 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-20 08:18:06,413 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:18:06,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-10-20 08:18:06,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:18:06,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:06,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:06,414 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:06,415 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:06,415 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 145#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 146#L522 assume !(main_~length1~0 < 1); 150#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 151#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 152#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 153#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 154#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 148#L516-3 [2020-10-20 08:18:06,415 INFO L796 eck$LassoCheckResult]: Loop: 148#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 147#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 148#L516-3 [2020-10-20 08:18:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,416 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2020-10-20 08:18:06,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31527759] [2020-10-20 08:18:06,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,448 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 2 times [2020-10-20 08:18:06,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770680630] [2020-10-20 08:18:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:06,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1899811660, now seen corresponding path program 1 times [2020-10-20 08:18:06,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:06,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663585683] [2020-10-20 08:18:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:06,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:06,513 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:06,755 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-10-20 08:18:06,856 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:06,856 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:06,856 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:06,856 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:06,856 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:06,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:06,856 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:06,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:06,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration3_Lasso [2020-10-20 08:18:06,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:06,857 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:06,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:06,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:07,418 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:07,419 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 08:18:07,423 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 [2020-10-20 08:18:07,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:07,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:07,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:07,429 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:07,467 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 [2020-10-20 08:18:07,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:07,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:07,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:07,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:07,473 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:07,510 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 [2020-10-20 08:18:07,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:07,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:07,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:07,515 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 [2020-10-20 08:18:07,539 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 [2020-10-20 08:18:07,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:07,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:07,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:07,549 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 [2020-10-20 08:18:07,581 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 [2020-10-20 08:18:07,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:07,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:07,596 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:07,629 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 [2020-10-20 08:18:07,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:07,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:07,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:07,635 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 [2020-10-20 08:18:07,661 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 [2020-10-20 08:18:07,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:07,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:07,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:07,669 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 [2020-10-20 08:18:07,693 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 [2020-10-20 08:18:07,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,697 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:07,697 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:07,702 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 [2020-10-20 08:18:07,728 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 [2020-10-20 08:18:07,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:07,739 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:07,749 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 [2020-10-20 08:18:07,774 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 [2020-10-20 08:18:07,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:07,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:07,794 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 [2020-10-20 08:18:07,820 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 [2020-10-20 08:18:07,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:07,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:07,828 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 [2020-10-20 08:18:07,870 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 [2020-10-20 08:18:07,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:07,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:07,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:07,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:07,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:07,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:07,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:07,947 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-10-20 08:18:07,947 INFO L444 ModelExtractionUtils]: 19 out of 31 variables were initially zero. Simplification set additionally 7 variables to zero. 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 [2020-10-20 08:18:07,951 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:18:07,954 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 08:18:07,954 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:07,955 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset) = -2*ULTIMATE.start_cstrlen_~p~0.offset + 3 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 + 2 >= 0] [2020-10-20 08:18:07,991 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-10-20 08:18:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:08,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 08:18:08,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:08,083 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 08:18:08,084 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:18:08,090 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:18:08,090 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 08:18:08,090 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2020-10-20 08:18:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:08,160 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 08:18:08,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:08,178 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-10-20 08:18:08,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 6 states. [2020-10-20 08:18:08,296 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 6 states. Result 20 states and 24 transitions. Complement of second has 9 states. [2020-10-20 08:18:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-10-20 08:18:08,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 08:18:08,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2020-10-20 08:18:08,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 08:18:08,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:08,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 08:18:08,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:08,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-20 08:18:08,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:08,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2020-10-20 08:18:08,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:18:08,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 17 transitions. [2020-10-20 08:18:08,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-20 08:18:08,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-20 08:18:08,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2020-10-20 08:18:08,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:08,301 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-10-20 08:18:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2020-10-20 08:18:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2020-10-20 08:18:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 08:18:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-10-20 08:18:08,303 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-20 08:18:08,321 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-20 08:18:08,321 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:18:08,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2020-10-20 08:18:08,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:18:08,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:18:08,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:18:08,323 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-10-20 08:18:08,323 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:18:08,326 INFO L794 eck$LassoCheckResult]: Stem: 266#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 262#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 263#L522 assume !(main_~length1~0 < 1); 267#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 268#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 269#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 270#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 271#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 273#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 272#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 265#L516-3 [2020-10-20 08:18:08,326 INFO L796 eck$LassoCheckResult]: Loop: 265#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 264#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 265#L516-3 [2020-10-20 08:18:08,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:08,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1899756335, now seen corresponding path program 2 times [2020-10-20 08:18:08,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:08,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072500692] [2020-10-20 08:18:08,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:08,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:08,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:08,399 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:08,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:08,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 3 times [2020-10-20 08:18:08,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:08,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330278519] [2020-10-20 08:18:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:08,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:08,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:08,413 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:08,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:08,414 INFO L82 PathProgramCache]: Analyzing trace with hash -304736234, now seen corresponding path program 2 times [2020-10-20 08:18:08,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:18:08,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782090943] [2020-10-20 08:18:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:18:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:08,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:18:08,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:18:08,483 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:18:08,822 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2020-10-20 08:18:08,931 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:18:08,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:18:08,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:18:08,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:18:08,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:18:08,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:08,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:18:08,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:18:08,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration4_Lasso [2020-10-20 08:18:08,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:18:08,932 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:18:08,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:08,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:18:09,527 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:18:09,527 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:18:09,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:09,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:09,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:09,538 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 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,559 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 [2020-10-20 08:18:09,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:09,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:09,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:09,562 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 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,585 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 [2020-10-20 08:18:09,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,592 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 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,618 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 [2020-10-20 08:18:09,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,621 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,621 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,625 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 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,647 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 [2020-10-20 08:18:09,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:09,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:09,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:09,656 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 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,679 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 [2020-10-20 08:18:09,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:18:09,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:18:09,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:18:09,683 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 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,708 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 [2020-10-20 08:18:09,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,721 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 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,755 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 [2020-10-20 08:18:09,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,783 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 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,824 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 [2020-10-20 08:18:09,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:18:09,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:18:09,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:18:09,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:18:09,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:18:09,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:18:09,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:18:09,915 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2020-10-20 08:18:09,915 INFO L444 ModelExtractionUtils]: 6 out of 31 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:18:09,918 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:18:09,921 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:18:09,921 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:18:09,921 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 Supporting invariants [] [2020-10-20 08:18:09,962 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-10-20 08:18:09,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:18:09,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:18:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:10,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 08:18:10,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:18:10,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 08:18:10,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:18:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:18:10,055 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 [2020-10-20 08:18:10,055 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-10-20 08:18:10,097 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 14 states and 17 transitions. Complement of second has 5 states. [2020-10-20 08:18:10,098 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 [2020-10-20 08:18:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 08:18:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-10-20 08:18:10,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 08:18:10,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:10,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2020-10-20 08:18:10,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:10,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-20 08:18:10,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:18:10,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-10-20 08:18:10,102 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:18:10,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-10-20 08:18:10,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:18:10,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:18:10,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:18:10,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:18:10,103 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:10,103 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:10,103 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:18:10,103 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:18:10,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:18:10,103 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:18:10,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:18:10,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:18:10 BoogieIcfgContainer [2020-10-20 08:18:10,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:18:10,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:18:10,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:18:10,110 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:18:10,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:18:04" (3/4) ... [2020-10-20 08:18:10,113 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:18:10,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:18:10,115 INFO L168 Benchmark]: Toolchain (without parser) took 7024.53 ms. Allocated memory was 43.5 MB in the beginning and 75.5 MB in the end (delta: 32.0 MB). Free memory was 24.1 MB in the beginning and 13.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 42.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,115 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 11.3 MB in the beginning and 11.3 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.24 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 23.2 MB in the beginning and 14.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.19 ms. Allocated memory is still 44.6 MB. Free memory was 14.8 MB in the beginning and 12.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,117 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 44.6 MB. Free memory was 12.8 MB in the beginning and 11.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,118 INFO L168 Benchmark]: RCFGBuilder took 389.84 ms. Allocated memory was 44.6 MB in the beginning and 45.6 MB in the end (delta: 1.0 MB). Free memory was 11.3 MB in the beginning and 15.0 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 08:18:10,119 INFO L168 Benchmark]: BuchiAutomizer took 5882.31 ms. Allocated memory was 45.6 MB in the beginning and 75.5 MB in the end (delta: 29.9 MB). Free memory was 15.0 MB in the beginning and 14.8 MB in the end (delta: 156.6 kB). Peak memory consumption was 30.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,120 INFO L168 Benchmark]: Witness Printer took 3.69 ms. Allocated memory is still 75.5 MB. Free memory was 14.8 MB in the beginning and 13.9 MB in the end (delta: 893.8 kB). Peak memory consumption was 893.8 kB. Max. memory is 14.3 GB. [2020-10-20 08:18:10,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 11.3 MB in the beginning and 11.3 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 665.24 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 23.2 MB in the beginning and 14.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 46.19 ms. Allocated memory is still 44.6 MB. Free memory was 14.8 MB in the beginning and 12.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 44.6 MB. Free memory was 12.8 MB in the beginning and 11.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 389.84 ms. Allocated memory was 44.6 MB in the beginning and 45.6 MB in the end (delta: 1.0 MB). Free memory was 11.3 MB in the beginning and 15.0 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 14.3 GB. * BuchiAutomizer took 5882.31 ms. Allocated memory was 45.6 MB in the beginning and 75.5 MB in the end (delta: 29.9 MB). Free memory was 15.0 MB in the beginning and 14.8 MB in the end (delta: 156.6 kB). Peak memory consumption was 30.0 MB. Max. memory is 14.3 GB. * Witness Printer took 3.69 ms. Allocated memory is still 75.5 MB. Free memory was 14.8 MB in the beginning and 13.9 MB in the end (delta: 893.8 kB). Peak memory consumption was 893.8 kB. Max. memory is 14.3 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 4 terminating modules (1 trivial, 3 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 -2 * p + 3 and consists of 7 locations. One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[nondetString1] 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 5.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 54 SDslu, 35 SDs, 0 SdLazy, 72 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital119 mio100 ax115 hnf98 lsp81 ukn84 mio100 lsp56 div100 bol100 ite100 ukn100 eq176 hnf89 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...