./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-memory-alloca/rec_strlen-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 872559d907cc6e66a8bb0b951a033bd6c217aa9a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:41:02,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:41:02,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:41:02,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:41:02,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:41:02,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:41:02,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:41:02,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:41:02,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:41:02,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:41:02,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:41:02,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:41:02,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:41:02,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:41:02,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:41:02,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:41:02,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:41:02,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:41:02,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:41:02,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:41:02,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:41:02,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:41:02,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:41:02,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:41:02,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:41:02,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:41:02,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:41:02,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:41:02,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:41:02,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:41:02,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:41:02,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:41:02,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:41:02,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:41:02,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:41:02,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:41:02,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:41:02,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:41:03,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:41:03,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:41:03,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:41:03,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:41:03,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:41:03,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:41:03,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:41:03,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:41:03,052 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:41:03,052 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:41:03,052 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:41:03,052 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:41:03,053 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:41:03,053 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:41:03,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:41:03,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:41:03,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:41:03,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:41:03,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:41:03,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:41:03,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:41:03,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:41:03,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:41:03,057 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:41:03,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:41:03,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:41:03,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:41:03,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:41:03,058 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:41:03,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:41:03,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:41:03,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:41:03,059 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:41:03,061 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:41:03,061 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 872559d907cc6e66a8bb0b951a033bd6c217aa9a [2020-10-20 06:41:03,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:41:03,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:41:03,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:41:03,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:41:03,301 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:41:03,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2020-10-20 06:41:03,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57fb4eaa1/604d3dac47624c02926192093c64850d/FLAG49b46e5b6 [2020-10-20 06:41:03,896 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:41:03,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2020-10-20 06:41:03,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57fb4eaa1/604d3dac47624c02926192093c64850d/FLAG49b46e5b6 [2020-10-20 06:41:04,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57fb4eaa1/604d3dac47624c02926192093c64850d [2020-10-20 06:41:04,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:41:04,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:41:04,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:41:04,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:41:04,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:41:04,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d8e57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04, skipping insertion in model container [2020-10-20 06:41:04,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:41:04,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:41:04,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:41:04,654 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:41:04,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:41:04,750 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:41:04,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04 WrapperNode [2020-10-20 06:41:04,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:41:04,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:41:04,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:41:04,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:41:04,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:41:04,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:41:04,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:41:04,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:41:04,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (1/1) ... [2020-10-20 06:41:04,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:41:04,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:41:04,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:41:04,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:41:04,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (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 06:41:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:41:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:41:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:41:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:41:04,901 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2020-10-20 06:41:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2020-10-20 06:41:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:41:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:41:05,178 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:41:05,178 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-20 06:41:05,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:41:05 BoogieIcfgContainer [2020-10-20 06:41:05,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:41:05,181 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:41:05,181 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:41:05,184 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:41:05,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:41:05,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:41:04" (1/3) ... [2020-10-20 06:41:05,187 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@291aa98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:41:05, skipping insertion in model container [2020-10-20 06:41:05,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:41:05,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:41:04" (2/3) ... [2020-10-20 06:41:05,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@291aa98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:41:05, skipping insertion in model container [2020-10-20 06:41:05,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:41:05,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:41:05" (3/3) ... [2020-10-20 06:41:05,190 INFO L373 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-2.i [2020-10-20 06:41:05,249 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:41:05,249 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:41:05,249 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:41:05,250 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:41:05,250 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:41:05,250 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:41:05,250 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:41:05,250 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:41:05,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-20 06:41:05,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:41:05,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:41:05,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:41:05,300 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:41:05,300 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:41:05,301 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:41:05,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-20 06:41:05,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:41:05,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:41:05,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:41:05,304 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:41:05,304 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:41:05,313 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 6#L555true assume !(main_~length1~0 < 1); 10#L555-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 14#L560true call main_#t~ret6 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 3#strlen_recENTRYtrue [2020-10-20 06:41:05,313 INFO L796 eck$LassoCheckResult]: Loop: 3#strlen_recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 5#L548true assume !(0 == #t~mem2);havoc #t~mem2; 16#L551true call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 3#strlen_recENTRYtrue [2020-10-20 06:41:05,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:41:05,319 INFO L82 PathProgramCache]: Analyzing trace with hash 28695762, now seen corresponding path program 1 times [2020-10-20 06:41:05,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:41:05,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956887918] [2020-10-20 06:41:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:41:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:41:05,433 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:41:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:41:05,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:41:05,469 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:41:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:41:05,470 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2020-10-20 06:41:05,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:41:05,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720405754] [2020-10-20 06:41:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:41:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:41:05,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:41:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:41:05,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:41:05,489 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:41:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:41:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash 176968867, now seen corresponding path program 1 times [2020-10-20 06:41:05,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:41:05,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739288350] [2020-10-20 06:41:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:41:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:41:05,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:41:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:41:05,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:41:05,549 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:41:05,852 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-10-20 06:41:06,058 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:41:06,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:41:06,060 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:41:06,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:41:06,060 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:41:06,061 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:41:06,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:41:06,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-2.i_Iteration1_Lasso [2020-10-20 06:41:06,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:41:06,062 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:41:06,091 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 06:41:06,107 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 06:41:06,110 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 06:41:06,113 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 06:41:06,118 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 06:41:06,121 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 06:41:06,124 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 06:41:06,127 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 06:41:06,131 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 06:41:06,133 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 06:41:06,141 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 06:41:06,145 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 06:41:06,147 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 06:41:06,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:41:06,152 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 06:41:06,158 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 06:41:06,161 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 06:41:06,163 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 06:41:06,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:41:06,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:41:06,224 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 06:41:06,228 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 06:41:06,231 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 06:41:06,233 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 06:41:06,236 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 06:41:06,464 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:41:06,470 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) [2020-10-20 06:41:06,485 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 06:41:06,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,503 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) [2020-10-20 06:41:06,557 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 06:41:06,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:41:06,609 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 06:41:06,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,624 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) [2020-10-20 06:41:06,666 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 06:41:06,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:06,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,683 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:41:06,725 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 06:41:06,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,732 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 06:41:06,759 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 06:41:06,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:06,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:41:06,769 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 06:41:06,807 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 06:41:06,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:06,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,842 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 06:41:06,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:06,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:41:06,851 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 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,892 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 06:41:06,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:06,902 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:06,927 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 06:41:06,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:06,944 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 06:41:06,979 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 06:41:06,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:06,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:06,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:06,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:06,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:06,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:06,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:06,985 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 06:41:07,015 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 06:41:07,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,020 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:07,020 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:41:07,024 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 06:41:07,072 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 06:41:07,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:07,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:07,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:07,078 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 06:41:07,109 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 06:41:07,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:07,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:07,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:07,113 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 06:41:07,145 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 06:41:07,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:07,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:07,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:07,150 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 06:41:07,175 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 06:41:07,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:07,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:41:07,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:07,179 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 06:41:07,202 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 06:41:07,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:07,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:41:07,213 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 06:41:07,254 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 06:41:07,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:41:07,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,256 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:41:07,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,258 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:41:07,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:41:07,260 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) [2020-10-20 06:41:07,303 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 06:41:07,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:07,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:07,317 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) [2020-10-20 06:41:07,377 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 06:41:07,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:07,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:07,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:41:07,425 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 06:41:07,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:41:07,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:41:07,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:41:07,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:41:07,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:41:07,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:07,442 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:41:07,461 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-20 06:41:07,462 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:41:07,468 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:41:07,472 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:41:07,472 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:41:07,473 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length strlen_rec_#in~p.base)_1, strlen_rec_#in~p.offset) = 1*v_rep(select #length strlen_rec_#in~p.base)_1 - 1*strlen_rec_#in~p.offset Supporting invariants [] [2020-10-20 06:41:07,516 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-10-20 06:41:07,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:41:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:41:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:41:07,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:41:07,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:41:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:41:07,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:41:07,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:41:07,700 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 06:41:07,719 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 06:41:07,720 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2020-10-20 06:41:07,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 30 states and 35 transitions. Complement of second has 8 states. [2020-10-20 06:41:07,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:41:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:41:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-20 06:41:07,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-20 06:41:07,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:41:07,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2020-10-20 06:41:07,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:41:07,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2020-10-20 06:41:07,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:41:07,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-10-20 06:41:07,847 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:41:07,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2020-10-20 06:41:07,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:41:07,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:41:07,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:41:07,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:41:07,853 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:41:07,853 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:41:07,853 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:41:07,853 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:41:07,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:41:07,853 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:41:07,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:41:07,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:41:07 BoogieIcfgContainer [2020-10-20 06:41:07,870 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:41:07,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:41:07,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:41:07,871 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:41:07,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:41:05" (3/4) ... [2020-10-20 06:41:07,876 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:41:07,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:41:07,878 INFO L168 Benchmark]: Toolchain (without parser) took 3659.81 ms. Allocated memory was 35.1 MB in the beginning and 58.2 MB in the end (delta: 23.1 MB). Free memory was 11.9 MB in the beginning and 27.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,880 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 19.7 MB in the beginning and 19.7 MB in the end (delta: 31.5 kB). Peak memory consumption was 31.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.25 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 11.0 MB in the beginning and 17.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.18 ms. Allocated memory is still 44.0 MB. Free memory was 17.2 MB in the beginning and 15.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,890 INFO L168 Benchmark]: Boogie Preprocessor took 39.21 ms. Allocated memory was 44.0 MB in the beginning and 43.5 MB in the end (delta: -524.3 kB). Free memory was 15.3 MB in the beginning and 26.8 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,891 INFO L168 Benchmark]: RCFGBuilder took 344.44 ms. Allocated memory is still 43.5 MB. Free memory was 26.8 MB in the beginning and 13.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,892 INFO L168 Benchmark]: BuchiAutomizer took 2689.22 ms. Allocated memory was 43.5 MB in the beginning and 58.2 MB in the end (delta: 14.7 MB). Free memory was 13.6 MB in the beginning and 27.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 675.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,896 INFO L168 Benchmark]: Witness Printer took 5.08 ms. Allocated memory is still 58.2 MB. Free memory was 27.6 MB in the beginning and 27.1 MB in the end (delta: 524.0 kB). Peak memory consumption was 524.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:41:07,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 19.7 MB in the beginning and 19.7 MB in the end (delta: 31.5 kB). Peak memory consumption was 31.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 525.25 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 11.0 MB in the beginning and 17.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 45.18 ms. Allocated memory is still 44.0 MB. Free memory was 17.2 MB in the beginning and 15.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.21 ms. Allocated memory was 44.0 MB in the beginning and 43.5 MB in the end (delta: -524.3 kB). Free memory was 15.3 MB in the beginning and 26.8 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 344.44 ms. Allocated memory is still 43.5 MB. Free memory was 26.8 MB in the beginning and 13.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 2689.22 ms. Allocated memory was 43.5 MB in the beginning and 58.2 MB in the end (delta: 14.7 MB). Free memory was 13.6 MB in the beginning and 27.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 675.1 kB. Max. memory is 14.3 GB. * Witness Printer took 5.08 ms. Allocated memory is still 58.2 MB. Free memory was 27.6 MB in the beginning and 27.1 MB in the end (delta: 524.0 kB). Peak memory consumption was 524.0 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[p] + -1 * p and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital88 mio100 ax120 hnf99 lsp77 ukn61 mio100 lsp50 div100 bol100 ite100 ukn100 eq172 hnf90 smp100 dnf100 smp100 tf100 neg100 sie100 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...