./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/reducercommutativity/max.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/reducercommutativity/max.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 8d92084d5239c17cc1b3b3069e809304d8dd180d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:16:19,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:16:19,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:16:20,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:16:20,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:16:20,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:16:20,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:16:20,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:16:20,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:16:20,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:16:20,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:16:20,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:16:20,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:16:20,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:16:20,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:16:20,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:16:20,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:16:20,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:16:20,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:16:20,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:16:20,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:16:20,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:16:20,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:16:20,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:16:20,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:16:20,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:16:20,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:16:20,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:16:20,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:16:20,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:16:20,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:16:20,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:16:20,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:16:20,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:16:20,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:16:20,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:16:20,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:16:20,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:16:20,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:16:20,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:16:20,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:16:20,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:16:20,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:16:20,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:16:20,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:16:20,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:16:20,083 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:16:20,084 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:16:20,084 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:16:20,084 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:16:20,084 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:16:20,085 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:16:20,085 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:16:20,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:16:20,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:16:20,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:16:20,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:16:20,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:16:20,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:16:20,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:16:20,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:16:20,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:16:20,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:16:20,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:16:20,088 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:16:20,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:16:20,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:16:20,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:16:20,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:16:20,089 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:16:20,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:16:20,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:16:20,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:16:20,090 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:16:20,091 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:16:20,093 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 -> 8d92084d5239c17cc1b3b3069e809304d8dd180d [2020-10-20 08:16:20,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:16:20,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:16:20,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:16:20,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:16:20,312 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:16:20,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max.i [2020-10-20 08:16:20,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4fbef2c/3fbf139056754df5834121fcd4b193ac/FLAGea2199877 [2020-10-20 08:16:20,847 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:16:20,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max.i [2020-10-20 08:16:20,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4fbef2c/3fbf139056754df5834121fcd4b193ac/FLAGea2199877 [2020-10-20 08:16:21,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4fbef2c/3fbf139056754df5834121fcd4b193ac [2020-10-20 08:16:21,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:16:21,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:16:21,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:16:21,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:16:21,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:16:21,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329302a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21, skipping insertion in model container [2020-10-20 08:16:21,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:16:21,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:16:21,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:16:21,624 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:16:21,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:16:21,701 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:16:21,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21 WrapperNode [2020-10-20 08:16:21,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:16:21,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:16:21,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:16:21,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:16:21,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:16:21,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:16:21,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:16:21,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:16:21,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (1/1) ... [2020-10-20 08:16:21,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:16:21,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:16:21,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:16:21,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:16:21,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (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 08:16:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 08:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 08:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:16:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 08:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 08:16:22,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:16:22,339 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 08:16:22,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:16:22 BoogieIcfgContainer [2020-10-20 08:16:22,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:16:22,342 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:16:22,342 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:16:22,345 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:16:22,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:16:22,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:16:21" (1/3) ... [2020-10-20 08:16:22,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2500668c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:16:22, skipping insertion in model container [2020-10-20 08:16:22,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:16:22,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:16:21" (2/3) ... [2020-10-20 08:16:22,348 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2500668c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:16:22, skipping insertion in model container [2020-10-20 08:16:22,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:16:22,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:16:22" (3/3) ... [2020-10-20 08:16:22,350 INFO L373 chiAutomizerObserver]: Analyzing ICFG max.i [2020-10-20 08:16:22,408 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:16:22,409 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:16:22,409 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:16:22,409 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:16:22,409 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:16:22,410 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:16:22,410 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:16:22,410 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:16:22,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2020-10-20 08:16:22,449 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-10-20 08:16:22,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:22,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:22,456 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 08:16:22,456 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:22,456 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:16:22,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2020-10-20 08:16:22,459 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-10-20 08:16:22,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:22,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:22,461 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 08:16:22,461 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:22,469 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 31#L31true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 8#L22-3true [2020-10-20 08:16:22,470 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-3true assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 14#L23true assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 12#L23-2true max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 9#L22-2true max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 8#L22-3true [2020-10-20 08:16:22,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:22,475 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-10-20 08:16:22,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:22,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755227219] [2020-10-20 08:16:22,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:22,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:22,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:22,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:22,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:22,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1326822, now seen corresponding path program 1 times [2020-10-20 08:16:22,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:22,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040813418] [2020-10-20 08:16:22,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:22,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:22,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:22,699 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:22,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:22,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1805089543, now seen corresponding path program 1 times [2020-10-20 08:16:22,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:22,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228058488] [2020-10-20 08:16:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:22,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:22,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:22,773 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:23,249 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-20 08:16:23,408 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-20 08:16:23,423 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:16:23,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:16:23,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:16:23,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:16:23,425 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:16:23,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:23,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:16:23,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:16:23,426 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration1_Lasso [2020-10-20 08:16:23,426 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:16:23,426 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:16:23,456 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 08:16:23,464 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 08:16:23,468 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 08:16:23,473 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 08:16:23,478 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 08:16:23,481 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 08:16:23,486 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 08:16:23,490 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 08:16:23,493 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 08:16:23,496 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 08:16:23,502 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 08:16:23,506 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 08:16:23,509 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 08:16:23,512 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 08:16:23,516 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 08:16:23,521 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 08:16:23,524 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 08:16:24,048 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-20 08:16:24,124 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 08:16:24,127 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 08:16:24,130 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 08:16:24,133 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 08:16:24,135 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 08:16:24,138 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 08:16:24,588 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:16:24,594 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 08:16:24,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:24,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,614 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 08:16:24,665 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 08:16:24,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:24,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,671 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 08:16:24,707 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 08:16:24,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,711 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 08:16:24,713 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 08:16:24,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:16:24,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:24,753 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 08:16:24,758 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 08:16:24,794 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 08:16:24,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,800 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 08:16:24,836 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 08:16:24,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,841 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 08:16:24,873 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 08:16:24,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,879 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 08:16:24,914 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 08:16:24,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,921 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 08:16:24,950 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 08:16:24,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:24,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:24,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:24,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:24,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:24,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:24,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:24,962 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 08:16:25,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:25,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:25,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:25,016 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 08:16:25,057 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 08:16:25,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:25,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:25,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:25,062 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 08:16:25,085 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 08:16:25,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:25,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:25,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:25,100 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 08:16:25,142 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 08:16:25,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:25,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:25,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:25,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:25,206 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 08:16:25,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:25,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:25,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:25,219 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 08:16:25,264 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 08:16:25,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:25,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:25,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:25,272 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) [2020-10-20 08:16:25,315 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 08:16:25,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:25,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:25,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:25,321 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 08:16:25,359 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 08:16:25,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:25,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:25,380 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 08:16:25,414 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 08:16:25,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:25,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:25,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:25,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:25,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:25,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:25,440 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:16:25,475 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-20 08:16:25,475 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. 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 08:16:25,489 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:25,493 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:16:25,493 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:16:25,494 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_max_~i~0, ~N~0) = -1*ULTIMATE.start_max_~i~0 + 1*~N~0 Supporting invariants [] [2020-10-20 08:16:25,720 INFO L297 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2020-10-20 08:16:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:25,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:16:25,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:25,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:16:25,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:25,806 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 08:16:25,824 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 08:16:25,826 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states. Second operand 3 states. [2020-10-20 08:16:25,887 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states.. Second operand 3 states. Result 65 states and 91 transitions. Complement of second has 8 states. [2020-10-20 08:16:25,887 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 08:16:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:16:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-10-20 08:16:25,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-20 08:16:25,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:25,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-20 08:16:25,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:25,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 3 letters. Loop has 8 letters. [2020-10-20 08:16:25,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:25,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 91 transitions. [2020-10-20 08:16:25,902 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:25,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 23 states and 32 transitions. [2020-10-20 08:16:25,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-20 08:16:25,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-20 08:16:25,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2020-10-20 08:16:25,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:25,911 INFO L691 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-10-20 08:16:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2020-10-20 08:16:25,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-20 08:16:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 08:16:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2020-10-20 08:16:25,942 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-10-20 08:16:25,942 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-10-20 08:16:25,942 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:16:25,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2020-10-20 08:16:25,944 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:25,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:25,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:25,945 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 08:16:25,945 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:25,945 INFO L794 eck$LassoCheckResult]: Stem: 317#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 314#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 315#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 309#L22-3 assume !(max_~i~0 < ~N~0); 305#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 306#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 298#L22-8 [2020-10-20 08:16:25,946 INFO L796 eck$LassoCheckResult]: Loop: 298#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 312#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 304#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 297#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 298#L22-8 [2020-10-20 08:16:25,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:25,946 INFO L82 PathProgramCache]: Analyzing trace with hash 889511083, now seen corresponding path program 1 times [2020-10-20 08:16:25,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:25,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638638119] [2020-10-20 08:16:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:26,012 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 08:16:26,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638638119] [2020-10-20 08:16:26,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:16:26,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:16:26,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072119380] [2020-10-20 08:16:26,018 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:16:26,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:26,018 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 1 times [2020-10-20 08:16:26,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:26,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736709571] [2020-10-20 08:16:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:26,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:26,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:16:26,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:16:26,081 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-10-20 08:16:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:26,125 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-10-20 08:16:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 08:16:26,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2020-10-20 08:16:26,129 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:26,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 33 transitions. [2020-10-20 08:16:26,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-20 08:16:26,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-20 08:16:26,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2020-10-20 08:16:26,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:26,134 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-20 08:16:26,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2020-10-20 08:16:26,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2020-10-20 08:16:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 08:16:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2020-10-20 08:16:26,140 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-10-20 08:16:26,140 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-10-20 08:16:26,140 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:16:26,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2020-10-20 08:16:26,143 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:26,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:26,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:26,146 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:26,146 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:26,146 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 369#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 370#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 364#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 365#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 371#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 367#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 366#L22-3 assume !(max_~i~0 < ~N~0); 359#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 360#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 353#L22-8 [2020-10-20 08:16:26,147 INFO L796 eck$LassoCheckResult]: Loop: 353#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 368#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 361#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 352#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 353#L22-8 [2020-10-20 08:16:26,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:26,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1805667996, now seen corresponding path program 1 times [2020-10-20 08:16:26,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:26,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559344905] [2020-10-20 08:16:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:16:26,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559344905] [2020-10-20 08:16:26,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580727870] [2020-10-20 08:16:26,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:16:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:26,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:16:26,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:16:26,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:16:26,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-20 08:16:26,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412896832] [2020-10-20 08:16:26,347 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:16:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:26,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 2 times [2020-10-20 08:16:26,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:26,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204753971] [2020-10-20 08:16:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:26,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:26,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 08:16:26,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-20 08:16:26,405 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-10-20 08:16:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:26,464 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-10-20 08:16:26,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:16:26,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2020-10-20 08:16:26,465 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:26,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2020-10-20 08:16:26,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-20 08:16:26,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-20 08:16:26,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2020-10-20 08:16:26,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:26,467 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-10-20 08:16:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2020-10-20 08:16:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-20 08:16:26,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 08:16:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-10-20 08:16:26,470 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-20 08:16:26,470 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-20 08:16:26,470 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:16:26,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2020-10-20 08:16:26,471 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:26,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:26,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:26,472 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:26,472 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:26,472 INFO L794 eck$LassoCheckResult]: Stem: 463#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 460#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 461#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 453#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 454#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 467#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 466#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 455#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 456#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 462#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 457#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 458#L22-3 assume !(max_~i~0 < ~N~0); 448#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 449#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 442#L22-8 [2020-10-20 08:16:26,472 INFO L796 eck$LassoCheckResult]: Loop: 442#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 459#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 450#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 441#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 442#L22-8 [2020-10-20 08:16:26,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:26,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1818198429, now seen corresponding path program 2 times [2020-10-20 08:16:26,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:26,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980162735] [2020-10-20 08:16:26,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:26,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 3 times [2020-10-20 08:16:26,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:26,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094762068] [2020-10-20 08:16:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:26,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:26,550 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:26,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:26,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1198284866, now seen corresponding path program 1 times [2020-10-20 08:16:26,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:26,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087659495] [2020-10-20 08:16:26,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:16:26,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087659495] [2020-10-20 08:16:26,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117752238] [2020-10-20 08:16:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:16:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:26,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 35 conjunts are in the unsatisfiable core [2020-10-20 08:16:26,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:27,177 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-10-20 08:16:27,178 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 20 [2020-10-20 08:16:27,179 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:16:27,186 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:16:27,187 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 08:16:27,188 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:14 [2020-10-20 08:16:27,219 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-20 08:16:27,221 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:16:27,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:16:27,225 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 08:16:27,225 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2020-10-20 08:16:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:16:27,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:16:27,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-10-20 08:16:27,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862748223] [2020-10-20 08:16:27,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:27,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-20 08:16:27,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-20 08:16:27,293 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 17 states. [2020-10-20 08:16:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:28,627 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2020-10-20 08:16:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-20 08:16:28,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 159 transitions. [2020-10-20 08:16:28,631 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 34 [2020-10-20 08:16:28,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 159 transitions. [2020-10-20 08:16:28,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 106 [2020-10-20 08:16:28,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2020-10-20 08:16:28,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 159 transitions. [2020-10-20 08:16:28,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:28,636 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 159 transitions. [2020-10-20 08:16:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 159 transitions. [2020-10-20 08:16:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 39. [2020-10-20 08:16:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-20 08:16:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-10-20 08:16:28,645 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-20 08:16:28,646 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-20 08:16:28,646 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:16:28,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2020-10-20 08:16:28,647 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-20 08:16:28,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:28,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:28,651 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:28,651 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:28,652 INFO L794 eck$LassoCheckResult]: Stem: 710#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 707#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 708#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 700#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 701#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 721#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 726#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 725#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 711#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 712#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 724#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 717#L22-3 assume !(max_~i~0 < ~N~0); 718#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 716#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 689#L22-8 [2020-10-20 08:16:28,652 INFO L796 eck$LassoCheckResult]: Loop: 689#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 715#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 697#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 688#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 689#L22-8 [2020-10-20 08:16:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:28,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2083741857, now seen corresponding path program 1 times [2020-10-20 08:16:28,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:28,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122504211] [2020-10-20 08:16:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:28,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:28,729 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:28,750 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:28,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 4 times [2020-10-20 08:16:28,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:28,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145628] [2020-10-20 08:16:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:28,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:28,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:28,770 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:28,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2085565180, now seen corresponding path program 1 times [2020-10-20 08:16:28,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:28,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681055873] [2020-10-20 08:16:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:28,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:28,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:28,833 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:29,886 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 195 DAG size of output: 174 [2020-10-20 08:16:29,899 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 08:16:30,881 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-20 08:16:30,885 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:16:30,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:16:30,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:16:30,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:16:30,885 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:16:30,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:30,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:16:30,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:16:30,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration5_Lasso [2020-10-20 08:16:30,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:16:30,886 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:16:30,906 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 08:16:30,915 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 08:16:30,923 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 08:16:30,926 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 08:16:30,928 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 08:16:30,930 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 08:16:30,932 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 08:16:30,934 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 08:16:30,936 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 08:16:30,938 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 08:16:30,941 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 08:16:30,945 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 08:16:30,947 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 08:16:30,949 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 08:16:30,951 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 08:16:30,954 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 08:16:31,773 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-20 08:16:32,468 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-10-20 08:16:32,566 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 08:16:32,569 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 08:16:32,571 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 08:16:32,574 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 08:16:32,579 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 08:16:33,062 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2020-10-20 08:16:33,182 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-10-20 08:16:33,713 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-20 08:16:33,847 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:16:33,847 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 08:16:33,852 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 08:16:33,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:33,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:33,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:33,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:33,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:33,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:33,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:33,860 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 08:16:33,885 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 08:16:33,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:33,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:33,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:33,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:33,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:33,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:33,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:33,888 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 08:16:33,910 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 08:16:33,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:33,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:33,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:33,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:33,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:33,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:33,916 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 08:16:33,939 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 08:16:33,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:33,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:33,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:33,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:33,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:33,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:33,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:33,942 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 08:16:33,966 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 08:16:33,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:33,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:33,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:33,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:33,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:33,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:33,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:33,970 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 08:16:33,995 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 08:16:33,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:33,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:33,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:33,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:33,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:33,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:33,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:33,998 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 08:16:34,022 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 08:16:34,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:34,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:34,030 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 08:16:34,055 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 08:16:34,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,058 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 08:16:34,083 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 08:16:34,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,086 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 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,109 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 08:16:34,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,113 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,135 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 08:16:34,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,144 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:34,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,178 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:34,203 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 08:16:34,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,207 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 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,234 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 08:16:34,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,243 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 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,266 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 08:16:34,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:34,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:34,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:34,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:34,274 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 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,296 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 08:16:34,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:34,298 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 08:16:34,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:34,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:34,311 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:16:34,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:34,337 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:16:34,406 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-20 08:16:34,407 INFO L444 ModelExtractionUtils]: 7 out of 34 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:34,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:16:34,412 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:16:34,412 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:16:34,412 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_max_~i~0, ~N~0) = -1*ULTIMATE.start_max_~i~0 + 1*~N~0 Supporting invariants [] [2020-10-20 08:16:34,725 INFO L297 tatePredicateManager]: 55 out of 55 supporting invariants were superfluous and have been removed [2020-10-20 08:16:34,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:34,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:16:34,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:34,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:16:34,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:34,795 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 08:16:34,796 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 08:16:34,796 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-10-20 08:16:34,834 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 49 states and 67 transitions. Complement of second has 7 states. [2020-10-20 08:16:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:16:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:16:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-10-20 08:16:34,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-20 08:16:34,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:34,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 18 letters. Loop has 4 letters. [2020-10-20 08:16:34,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:34,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 14 letters. Loop has 8 letters. [2020-10-20 08:16:34,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:34,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2020-10-20 08:16:34,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:34,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 40 states and 52 transitions. [2020-10-20 08:16:34,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-20 08:16:34,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-20 08:16:34,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 52 transitions. [2020-10-20 08:16:34,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:34,844 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-20 08:16:34,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 52 transitions. [2020-10-20 08:16:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-20 08:16:34,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-20 08:16:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-10-20 08:16:34,850 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-20 08:16:34,850 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-20 08:16:34,850 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 08:16:34,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 52 transitions. [2020-10-20 08:16:34,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:34,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:34,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:34,854 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:34,855 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:16:34,856 INFO L794 eck$LassoCheckResult]: Stem: 1095#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1092#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1093#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1086#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1087#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1096#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1113#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1112#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1104#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1110#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1108#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1103#L22-3 assume !(max_~i~0 < ~N~0); 1081#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1082#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1099#L22-8 assume !(max_~i~0 < ~N~0); 1097#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1098#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1084#L43-3 [2020-10-20 08:16:34,856 INFO L796 eck$LassoCheckResult]: Loop: 1084#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1085#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1084#L43-3 [2020-10-20 08:16:34,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:34,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1591298555, now seen corresponding path program 1 times [2020-10-20 08:16:34,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:34,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87500992] [2020-10-20 08:16:34,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 08:16:34,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87500992] [2020-10-20 08:16:34,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:16:34,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:16:34,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908648766] [2020-10-20 08:16:34,888 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:16:34,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:34,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2020-10-20 08:16:34,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:34,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616746951] [2020-10-20 08:16:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:34,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:34,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:34,897 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:34,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:34,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:16:34,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:16:34,945 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. cyclomatic complexity: 17 Second operand 4 states. [2020-10-20 08:16:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:35,022 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-10-20 08:16:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 08:16:35,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 59 transitions. [2020-10-20 08:16:35,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:35,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 59 transitions. [2020-10-20 08:16:35,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-20 08:16:35,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 08:16:35,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 59 transitions. [2020-10-20 08:16:35,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:35,027 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 59 transitions. [2020-10-20 08:16:35,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 59 transitions. [2020-10-20 08:16:35,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2020-10-20 08:16:35,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-20 08:16:35,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2020-10-20 08:16:35,032 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-20 08:16:35,032 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-20 08:16:35,032 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 08:16:35,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2020-10-20 08:16:35,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:35,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:35,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:35,035 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:35,035 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:16:35,036 INFO L794 eck$LassoCheckResult]: Stem: 1190#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1186#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1187#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1180#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1181#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1188#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1189#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1207#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1200#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1205#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1203#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1199#L22-3 assume !(max_~i~0 < ~N~0); 1198#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1197#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1194#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1195#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1175#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1168#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1169#L22-8 assume !(max_~i~0 < ~N~0); 1192#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1193#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1178#L43-3 [2020-10-20 08:16:35,036 INFO L796 eck$LassoCheckResult]: Loop: 1178#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1179#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1178#L43-3 [2020-10-20 08:16:35,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:35,036 INFO L82 PathProgramCache]: Analyzing trace with hash -18080898, now seen corresponding path program 1 times [2020-10-20 08:16:35,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:35,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037675287] [2020-10-20 08:16:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 08:16:35,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037675287] [2020-10-20 08:16:35,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610504268] [2020-10-20 08:16:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:16:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:35,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:16:35,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 08:16:35,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:16:35,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-20 08:16:35,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890972412] [2020-10-20 08:16:35,214 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:16:35,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:35,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2020-10-20 08:16:35,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:35,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275096636] [2020-10-20 08:16:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:35,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:35,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:35,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:35,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:35,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 08:16:35,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-20 08:16:35,268 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-20 08:16:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:35,401 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2020-10-20 08:16:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:16:35,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 75 transitions. [2020-10-20 08:16:35,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:35,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 60 states and 75 transitions. [2020-10-20 08:16:35,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-10-20 08:16:35,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-10-20 08:16:35,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2020-10-20 08:16:35,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:35,405 INFO L691 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-10-20 08:16:35,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2020-10-20 08:16:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2020-10-20 08:16:35,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-20 08:16:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-10-20 08:16:35,408 INFO L714 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-10-20 08:16:35,408 INFO L594 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-10-20 08:16:35,408 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 08:16:35,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2020-10-20 08:16:35,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:35,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:35,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:35,410 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:35,410 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:16:35,410 INFO L794 eck$LassoCheckResult]: Stem: 1363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1360#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1359#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1352#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1353#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1380#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1381#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1354#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1355#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1379#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1378#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1377#L22-3 assume !(max_~i~0 < ~N~0); 1347#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1348#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1376#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1375#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1374#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1373#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1369#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1358#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1349#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1340#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1341#L22-8 assume !(max_~i~0 < ~N~0); 1365#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1366#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1350#L43-3 [2020-10-20 08:16:35,410 INFO L796 eck$LassoCheckResult]: Loop: 1350#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1351#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1350#L43-3 [2020-10-20 08:16:35,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:35,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2011161481, now seen corresponding path program 2 times [2020-10-20 08:16:35,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:35,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298567288] [2020-10-20 08:16:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 08:16:35,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298567288] [2020-10-20 08:16:35,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332245985] [2020-10-20 08:16:35,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:16:35,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 08:16:35,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 08:16:35,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 46 conjunts are in the unsatisfiable core [2020-10-20 08:16:35,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:35,833 INFO L350 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2020-10-20 08:16:35,834 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 23 [2020-10-20 08:16:35,847 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:16:35,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:16:35,857 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 08:16:35,857 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:16 [2020-10-20 08:16:35,950 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-20 08:16:35,951 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 08:16:35,956 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 08:16:35,956 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 08:16:35,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2020-10-20 08:16:35,987 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 08:16:35,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:16:35,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2020-10-20 08:16:35,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862111679] [2020-10-20 08:16:35,988 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:16:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:35,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 3 times [2020-10-20 08:16:35,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:35,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754853061] [2020-10-20 08:16:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:35,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:35,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:35,995 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:36,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:36,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-20 08:16:36,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-20 08:16:36,053 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand 18 states. [2020-10-20 08:16:37,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:37,292 INFO L93 Difference]: Finished difference Result 132 states and 166 transitions. [2020-10-20 08:16:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-20 08:16:37,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 166 transitions. [2020-10-20 08:16:37,294 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 22 [2020-10-20 08:16:37,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 132 states and 166 transitions. [2020-10-20 08:16:37,298 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-10-20 08:16:37,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-10-20 08:16:37,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 166 transitions. [2020-10-20 08:16:37,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:37,299 INFO L691 BuchiCegarLoop]: Abstraction has 132 states and 166 transitions. [2020-10-20 08:16:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 166 transitions. [2020-10-20 08:16:37,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 56. [2020-10-20 08:16:37,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 08:16:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2020-10-20 08:16:37,304 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-10-20 08:16:37,304 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-10-20 08:16:37,305 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-20 08:16:37,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 70 transitions. [2020-10-20 08:16:37,305 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 08:16:37,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:37,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:37,306 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:37,306 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:16:37,307 INFO L794 eck$LassoCheckResult]: Stem: 1659#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1656#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1657#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1649#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1650#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1668#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1669#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1651#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1652#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1658#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1654#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1655#L22-3 assume !(max_~i~0 < ~N~0); 1645#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1646#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1662#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1663#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1672#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1671#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1664#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1665#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1644#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 1637#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1638#L22-8 assume !(max_~i~0 < ~N~0); 1660#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1661#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1647#L43-3 [2020-10-20 08:16:37,307 INFO L796 eck$LassoCheckResult]: Loop: 1647#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1648#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1647#L43-3 [2020-10-20 08:16:37,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:37,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1618134471, now seen corresponding path program 1 times [2020-10-20 08:16:37,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:37,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618572908] [2020-10-20 08:16:37,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:37,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:37,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:37,386 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:37,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 4 times [2020-10-20 08:16:37,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:37,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409714315] [2020-10-20 08:16:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:37,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:37,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:37,396 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:37,396 INFO L82 PathProgramCache]: Analyzing trace with hash -249063589, now seen corresponding path program 1 times [2020-10-20 08:16:37,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:37,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431467870] [2020-10-20 08:16:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:37,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:37,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:37,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:39,523 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 256 DAG size of output: 219 [2020-10-20 08:16:39,533 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 08:16:42,955 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 195 DAG size of output: 165 [2020-10-20 08:16:42,961 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:16:42,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:16:42,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:16:42,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:16:42,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:16:42,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:42,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:16:42,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:16:42,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration9_Lasso [2020-10-20 08:16:42,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:16:42,962 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:16:42,970 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 08:16:42,980 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 08:16:42,987 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 08:16:42,990 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 08:16:42,993 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 08:16:42,996 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 08:16:42,999 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 08:16:43,001 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 08:16:43,005 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 08:16:43,007 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 08:16:43,009 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 08:16:43,012 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 08:16:45,451 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-20 08:16:46,484 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 105 [2020-10-20 08:16:46,689 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2020-10-20 08:16:46,690 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 08:16:46,692 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 08:16:46,695 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 08:16:46,698 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 08:16:46,700 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 08:16:46,703 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 08:16:47,543 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2020-10-20 08:16:47,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-10-20 08:16:49,220 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2020-10-20 08:16:49,318 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:16:49,318 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:49,339 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 08:16:49,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,346 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:49,390 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 08:16:49,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,402 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:49,445 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 08:16:49,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,451 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:49,492 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 08:16:49,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:49,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:49,537 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 08:16:49,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,543 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:16:49,581 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 08:16:49,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,586 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 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,630 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 08:16:49,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,637 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,662 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 08:16:49,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,665 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,688 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 08:16:49,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,692 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 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,715 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 08:16:49,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,718 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 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,742 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 08:16:49,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:49,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:49,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,779 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 08:16:49,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:49,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:49,786 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 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,812 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 08:16:49,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,815 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 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,839 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 08:16:49,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:49,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:49,851 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 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,874 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 08:16:49,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:49,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:49,880 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 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,902 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 08:16:49,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,906 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 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,932 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 08:16:49,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:49,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:49,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,961 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 08:16:49,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,965 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:49,989 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 08:16:49,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:49,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:49,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:49,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:49,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:49,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:49,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:49,992 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,015 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 08:16:50,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:50,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:50,026 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 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,049 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 08:16:50,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:50,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:50,055 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 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,078 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 08:16:50,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:50,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:50,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:50,082 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 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,103 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 08:16:50,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:50,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:50,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:50,107 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 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,130 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 08:16:50,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:16:50,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:50,136 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 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,157 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 08:16:50,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:50,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:50,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:50,161 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 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,183 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 08:16:50,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:16:50,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:16:50,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:16:50,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:16:50,187 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 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,209 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 08:16:50,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:16:50,211 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 08:16:50,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:16:50,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:16:50,232 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:16:50,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:16:50,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:16:50,345 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-20 08:16:50,346 INFO L444 ModelExtractionUtils]: 20 out of 67 variables were initially zero. Simplification set additionally 43 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:50,348 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:16:50,350 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:16:50,351 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:16:50,351 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~#x~0.offset, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_3) = -4*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_main_~#x~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_3 Supporting invariants [] [2020-10-20 08:16:50,922 INFO L297 tatePredicateManager]: 76 out of 76 supporting invariants were superfluous and have been removed [2020-10-20 08:16:50,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:16:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:50,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:16:50,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:50,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:16:50,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:16:50,998 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 08:16:50,998 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 08:16:50,998 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-10-20 08:16:51,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20. Second operand 3 states. Result 63 states and 82 transitions. Complement of second has 6 states. [2020-10-20 08:16:51,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:16:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:16:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-10-20 08:16:51,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 25 letters. Loop has 2 letters. [2020-10-20 08:16:51,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:51,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 27 letters. Loop has 2 letters. [2020-10-20 08:16:51,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:51,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 25 letters. Loop has 4 letters. [2020-10-20 08:16:51,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:16:51,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2020-10-20 08:16:51,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:16:51,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 57 states and 72 transitions. [2020-10-20 08:16:51,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-20 08:16:51,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-20 08:16:51,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 72 transitions. [2020-10-20 08:16:51,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:51,051 INFO L691 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-10-20 08:16:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 72 transitions. [2020-10-20 08:16:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 08:16:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 08:16:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-10-20 08:16:51,055 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-10-20 08:16:51,055 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-10-20 08:16:51,055 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-20 08:16:51,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 72 transitions. [2020-10-20 08:16:51,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:16:51,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:51,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:51,057 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:51,057 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:51,058 INFO L794 eck$LassoCheckResult]: Stem: 2188#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2185#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2186#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2178#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2179#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2217#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2216#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2214#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2206#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2211#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2208#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2205#L22-3 assume !(max_~i~0 < ~N~0); 2203#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2201#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2199#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2198#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2184#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2164#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2165#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2195#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2197#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2196#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2194#L22-8 assume !(max_~i~0 < ~N~0); 2189#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2190#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 2175#L43-3 assume !(main_~i~1 < ~N~0 - 1); 2169#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2170#L22-13 [2020-10-20 08:16:51,058 INFO L796 eck$LassoCheckResult]: Loop: 2170#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2168#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2166#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2167#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2170#L22-13 [2020-10-20 08:16:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:51,059 INFO L82 PathProgramCache]: Analyzing trace with hash -249063647, now seen corresponding path program 1 times [2020-10-20 08:16:51,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:51,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27876020] [2020-10-20 08:16:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:16:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-20 08:16:51,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27876020] [2020-10-20 08:16:51,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:16:51,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:16:51,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029924989] [2020-10-20 08:16:51,097 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:16:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:51,097 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 1 times [2020-10-20 08:16:51,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:51,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666774777] [2020-10-20 08:16:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,104 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:51,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:16:51,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:16:51,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:16:51,143 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-10-20 08:16:51,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:16:51,176 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-10-20 08:16:51,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 08:16:51,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 72 transitions. [2020-10-20 08:16:51,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:16:51,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 72 transitions. [2020-10-20 08:16:51,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-20 08:16:51,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-20 08:16:51,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 72 transitions. [2020-10-20 08:16:51,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:16:51,180 INFO L691 BuchiCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-10-20 08:16:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 72 transitions. [2020-10-20 08:16:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-10-20 08:16:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 08:16:51,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2020-10-20 08:16:51,183 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-20 08:16:51,183 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-20 08:16:51,183 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-20 08:16:51,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 71 transitions. [2020-10-20 08:16:51,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:16:51,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:16:51,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:16:51,185 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:16:51,185 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:16:51,185 INFO L794 eck$LassoCheckResult]: Stem: 2310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2306#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2307#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2299#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2300#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2308#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2309#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2342#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2335#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2341#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2338#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2334#L22-3 assume !(max_~i~0 < ~N~0); 2329#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2326#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2325#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2323#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2305#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2322#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2321#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2318#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2320#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2319#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2317#L22-8 assume !(max_~i~0 < ~N~0); 2312#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2313#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 2296#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 2297#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2298#L43-3 assume !(main_~i~1 < ~N~0 - 1); 2291#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2292#L22-13 [2020-10-20 08:16:51,185 INFO L796 eck$LassoCheckResult]: Loop: 2292#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2290#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2288#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2289#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2292#L22-13 [2020-10-20 08:16:51,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:51,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1168061379, now seen corresponding path program 1 times [2020-10-20 08:16:51,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:51,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133420538] [2020-10-20 08:16:51,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,252 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:51,252 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 2 times [2020-10-20 08:16:51,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:51,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299289926] [2020-10-20 08:16:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:51,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:16:51,259 INFO L82 PathProgramCache]: Analyzing trace with hash 934015144, now seen corresponding path program 1 times [2020-10-20 08:16:51,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:16:51,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36613603] [2020-10-20 08:16:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:16:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:16:51,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:16:51,345 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:16:54,112 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 308 DAG size of output: 251 [2020-10-20 08:16:54,128 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 08:16:57,893 WARN L193 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 215 DAG size of output: 173 [2020-10-20 08:16:57,898 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:16:57,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:16:57,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:16:57,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:16:57,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:16:57,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:16:57,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:16:57,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:16:57,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration11_Lasso [2020-10-20 08:16:57,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:16:57,899 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:16:57,907 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 08:16:57,918 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 08:16:57,925 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 08:16:57,929 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 08:16:57,932 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 08:16:57,934 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 08:16:57,937 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 08:16:57,941 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 08:16:57,944 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 08:16:57,947 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 08:16:57,949 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 08:16:57,952 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 08:16:57,955 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 08:16:57,957 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 08:16:57,960 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 08:16:57,963 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 08:16:59,088 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 49 [2020-10-20 08:17:00,031 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2020-10-20 08:17:00,145 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 08:17:00,148 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 08:17:00,151 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 08:17:01,008 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 114 [2020-10-20 08:17:01,109 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2020-10-20 08:17:02,248 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-20 08:17:02,355 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:17:02,355 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,361 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 08:17:02,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,365 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 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,385 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 08:17:02,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,388 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 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,410 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 08:17:02,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:02,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:02,415 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,439 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 08:17:02,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,443 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 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,472 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 08:17:02,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,476 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 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,497 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 08:17:02,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,522 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 08:17:02,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,525 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,547 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 08:17:02,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:02,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:02,553 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 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,579 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 08:17:02,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,582 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:17:02,609 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 08:17:02,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,612 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 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,634 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 08:17:02,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,642 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,674 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 08:17:02,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,678 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 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,702 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 08:17:02,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,706 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 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,729 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 08:17:02,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,732 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 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,754 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 08:17:02,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,757 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 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,781 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 08:17:02,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,785 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:17:02,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,811 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 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,834 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 08:17:02,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,837 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 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,861 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 08:17:02,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:02,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:02,866 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 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,890 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 08:17:02,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:02,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:02,895 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 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,918 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 08:17:02,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:02,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:02,937 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 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,960 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 08:17:02,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:02,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:02,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:02,963 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 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:02,987 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 08:17:02,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:02,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:02,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:02,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:02,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:02,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:02,992 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 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:03,015 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 08:17:03,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:03,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:03,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:03,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:03,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:03,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:03,025 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 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:03,048 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 08:17:03,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:03,050 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 08:17:03,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:03,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:03,066 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:17:03,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:03,103 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:17:03,197 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-10-20 08:17:03,197 INFO L444 ModelExtractionUtils]: 9 out of 43 variables were initially zero. Simplification set additionally 29 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:03,199 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:17:03,201 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 08:17:03,202 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:17:03,202 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_max_~x.base)_4, ULTIMATE.start_max_~i~0) = 1*v_rep(select #length ULTIMATE.start_max_~x.base)_4 - 2*ULTIMATE.start_max_~i~0 Supporting invariants [-2*~N~0 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_4 >= 0] [2020-10-20 08:17:03,609 INFO L297 tatePredicateManager]: 56 out of 58 supporting invariants were superfluous and have been removed [2020-10-20 08:17:03,615 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:17:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:17:03,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 08:17:03,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:17:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:17:03,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 08:17:03,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:17:03,845 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 08:17:03,846 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-10-20 08:17:03,846 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20 Second operand 8 states. [2020-10-20 08:17:04,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20. Second operand 8 states. Result 125 states and 158 transitions. Complement of second has 13 states. [2020-10-20 08:17:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 8 stem states 1 non-accepting loop states 2 accepting loop states [2020-10-20 08:17:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-20 08:17:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 83 transitions. [2020-10-20 08:17:04,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 29 letters. Loop has 4 letters. [2020-10-20 08:17:04,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:17:04,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 33 letters. Loop has 4 letters. [2020-10-20 08:17:04,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:17:04,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 29 letters. Loop has 8 letters. [2020-10-20 08:17:04,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:17:04,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 158 transitions. [2020-10-20 08:17:04,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:17:04,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 85 states and 106 transitions. [2020-10-20 08:17:04,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-20 08:17:04,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 08:17:04,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 106 transitions. [2020-10-20 08:17:04,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:17:04,260 INFO L691 BuchiCegarLoop]: Abstraction has 85 states and 106 transitions. [2020-10-20 08:17:04,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 106 transitions. [2020-10-20 08:17:04,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2020-10-20 08:17:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 08:17:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2020-10-20 08:17:04,263 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-10-20 08:17:04,263 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-10-20 08:17:04,263 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-20 08:17:04,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 87 transitions. [2020-10-20 08:17:04,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:17:04,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:17:04,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:17:04,265 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:17:04,265 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:17:04,265 INFO L794 eck$LassoCheckResult]: Stem: 2876#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2872#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2873#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2866#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2867#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2917#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2916#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2915#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2914#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2913#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2912#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2911#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2902#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2909#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2904#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2901#L22-3 assume !(max_~i~0 < ~N~0); 2898#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2897#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2896#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2894#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2860#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2853#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2854#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2891#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2890#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2889#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2888#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2885#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2887#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2886#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2884#L22-8 assume !(max_~i~0 < ~N~0); 2878#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2879#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 2863#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 2864#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2865#L43-3 assume !(main_~i~1 < ~N~0 - 1); 2858#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2859#L22-13 [2020-10-20 08:17:04,266 INFO L796 eck$LassoCheckResult]: Loop: 2859#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2857#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2855#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 2856#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2859#L22-13 [2020-10-20 08:17:04,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:04,266 INFO L82 PathProgramCache]: Analyzing trace with hash 477776739, now seen corresponding path program 2 times [2020-10-20 08:17:04,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:04,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157989225] [2020-10-20 08:17:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:17:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-20 08:17:04,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157989225] [2020-10-20 08:17:04,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488372034] [2020-10-20 08:17:04,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:17:04,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 08:17:04,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 08:17:04,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 08:17:04,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:17:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-20 08:17:04,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:17:04,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-10-20 08:17:04,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523006676] [2020-10-20 08:17:04,511 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:17:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:04,512 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 3 times [2020-10-20 08:17:04,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:04,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478436900] [2020-10-20 08:17:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:04,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:04,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:04,518 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:04,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:17:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 08:17:04,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-20 08:17:04,561 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. cyclomatic complexity: 22 Second operand 13 states. [2020-10-20 08:17:04,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:17:04,910 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2020-10-20 08:17:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 08:17:04,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 100 transitions. [2020-10-20 08:17:04,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:17:04,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 82 states and 100 transitions. [2020-10-20 08:17:04,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-10-20 08:17:04,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-10-20 08:17:04,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 100 transitions. [2020-10-20 08:17:04,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:17:04,915 INFO L691 BuchiCegarLoop]: Abstraction has 82 states and 100 transitions. [2020-10-20 08:17:04,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 100 transitions. [2020-10-20 08:17:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2020-10-20 08:17:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 08:17:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2020-10-20 08:17:04,921 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-10-20 08:17:04,921 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-10-20 08:17:04,921 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-20 08:17:04,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 89 transitions. [2020-10-20 08:17:04,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 08:17:04,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:17:04,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:17:04,923 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:17:04,924 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 08:17:04,924 INFO L794 eck$LassoCheckResult]: Stem: 3170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 3167#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 3168#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 3159#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3160#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 3215#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3216#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3161#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3162#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3169#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3164#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3165#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3211#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3214#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3212#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3210#L22-3 assume !(max_~i~0 < ~N~0); 3151#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 3152#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 3173#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3174#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 3153#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3154#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3175#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3176#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3183#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3182#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3181#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3178#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3180#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3179#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3177#L22-8 assume !(max_~i~0 < ~N~0); 3171#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 3172#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 3155#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 3156#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3157#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 3158#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3163#L43-3 assume !(main_~i~1 < ~N~0 - 1); 3149#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 3150#L22-13 [2020-10-20 08:17:04,924 INFO L796 eck$LassoCheckResult]: Loop: 3150#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3148#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 3146#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4; 3147#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3150#L22-13 [2020-10-20 08:17:04,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:04,925 INFO L82 PathProgramCache]: Analyzing trace with hash -417996923, now seen corresponding path program 3 times [2020-10-20 08:17:04,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:04,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954006169] [2020-10-20 08:17:04,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:04,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:04,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:04,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:04,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:04,988 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 4 times [2020-10-20 08:17:04,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:04,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485844093] [2020-10-20 08:17:04,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:04,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:04,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:04,995 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:04,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:04,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1568478358, now seen corresponding path program 2 times [2020-10-20 08:17:04,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:17:04,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118429493] [2020-10-20 08:17:04,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:17:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:05,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:17:05,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:17:05,103 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:17:12,961 WARN L193 SmtUtils]: Spent 7.81 s on a formula simplification. DAG size of input: 363 DAG size of output: 282 [2020-10-20 08:17:12,994 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 08:17:20,542 WARN L193 SmtUtils]: Spent 7.53 s on a formula simplification. DAG size of input: 213 DAG size of output: 177 [2020-10-20 08:17:20,547 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:17:20,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:17:20,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:17:20,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:17:20,547 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:17:20,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:20,548 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:17:20,548 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:17:20,548 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration13_Lasso [2020-10-20 08:17:20,548 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:17:20,548 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:17:20,553 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 08:17:20,556 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 08:17:20,562 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 08:17:20,565 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 08:17:20,569 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 08:17:20,574 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 08:17:20,577 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 08:17:20,581 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 08:17:20,584 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 08:17:20,589 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 08:17:20,593 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 08:17:20,695 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 08:17:20,698 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 08:17:20,700 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 08:17:23,252 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-20 08:17:24,221 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2020-10-20 08:17:24,368 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-20 08:17:24,369 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 08:17:24,372 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 08:17:24,376 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 08:17:24,380 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 08:17:24,384 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 08:17:25,185 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-10-20 08:17:25,287 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-10-20 08:17:26,353 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-20 08:17:26,443 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:17:26,444 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,448 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 08:17:26,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,451 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 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,472 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 08:17:26,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:26,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:26,478 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 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,500 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 08:17:26,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,503 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 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,525 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 08:17:26,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,528 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 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,551 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 08:17:26,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,553 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 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,575 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 08:17:26,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,578 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 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,601 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 08:17:26,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,604 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:17:26,626 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 08:17:26,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,631 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 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,653 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 08:17:26,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,656 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 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,679 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 08:17:26,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,682 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 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,705 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 08:17:26,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,710 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 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,741 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 08:17:26,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,749 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 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,771 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 08:17:26,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,774 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 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,797 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 08:17:26,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,800 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 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,823 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 08:17:26,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:26,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:26,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:26,826 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 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,849 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 08:17:26,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:26,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:26,855 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 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:17:26,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:26,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:26,886 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 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,908 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 08:17:26,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:26,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:26,915 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 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,936 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 08:17:26,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:26,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:26,948 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 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:26,970 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 08:17:26,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:26,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:26,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:26,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:26,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:26,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:26,983 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 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:27,005 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 08:17:27,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:27,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:27,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:27,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:27,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:27,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:27,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:27,008 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 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:27,031 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 08:17:27,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:27,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:17:27,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:27,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:27,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:27,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:17:27,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:17:27,034 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 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:27,057 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 08:17:27,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:27,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:27,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:27,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:27,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:27,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:27,063 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 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:27,086 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 08:17:27,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:27,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:17:27,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:27,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:27,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:17:27,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:27,095 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 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:27,118 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 08:17:27,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:17:27,120 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 08:17:27,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:17:27,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:17:27,135 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 08:17:27,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:17:27,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:17:27,270 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-20 08:17:27,270 INFO L444 ModelExtractionUtils]: 8 out of 43 variables were initially zero. Simplification set additionally 31 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:17:27,276 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:17:27,281 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:17:27,281 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:17:27,282 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_max_~x.base)_5, ULTIMATE.start_max_~i~0, ULTIMATE.start_max_~x.offset) = 1*v_rep(select #length ULTIMATE.start_max_~x.base)_5 - 4*ULTIMATE.start_max_~i~0 - 1*ULTIMATE.start_max_~x.offset Supporting invariants [] [2020-10-20 08:17:28,003 INFO L297 tatePredicateManager]: 69 out of 69 supporting invariants were superfluous and have been removed [2020-10-20 08:17:28,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:17:28,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:17:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:17:28,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:17:28,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:17:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:17:28,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:17:28,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:17:28,099 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 08:17:28,100 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 08:17:28,100 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 89 transitions. cyclomatic complexity: 22 Second operand 3 states. [2020-10-20 08:17:28,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 89 transitions. cyclomatic complexity: 22. Second operand 3 states. Result 77 states and 95 transitions. Complement of second has 4 states. [2020-10-20 08:17:28,127 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 08:17:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:17:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-10-20 08:17:28,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 39 letters. Loop has 4 letters. [2020-10-20 08:17:28,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:17:28,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 43 letters. Loop has 4 letters. [2020-10-20 08:17:28,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:17:28,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 39 letters. Loop has 8 letters. [2020-10-20 08:17:28,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:17:28,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 95 transitions. [2020-10-20 08:17:28,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:17:28,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 0 states and 0 transitions. [2020-10-20 08:17:28,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:17:28,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:17:28,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:17:28,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:17:28,130 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:17:28,130 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:17:28,131 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:17:28,131 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-20 08:17:28,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:17:28,131 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:17:28,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:17:28,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:17:28 BoogieIcfgContainer [2020-10-20 08:17:28,138 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:17:28,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:17:28,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:17:28,139 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:17:28,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:16:22" (3/4) ... [2020-10-20 08:17:28,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:17:28,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:17:28,145 INFO L168 Benchmark]: Toolchain (without parser) took 66920.72 ms. Allocated memory was 36.7 MB in the beginning and 194.0 MB in the end (delta: 157.3 MB). Free memory was 16.8 MB in the beginning and 38.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 135.8 MB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,145 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 9.8 MB in the beginning and 9.8 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.44 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 16.0 MB in the beginning and 25.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.87 ms. Allocated memory is still 44.6 MB. Free memory was 25.2 MB in the beginning and 23.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,146 INFO L168 Benchmark]: Boogie Preprocessor took 61.83 ms. Allocated memory is still 44.6 MB. Free memory was 23.2 MB in the beginning and 21.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,147 INFO L168 Benchmark]: RCFGBuilder took 499.02 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 21.4 MB in the beginning and 14.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,147 INFO L168 Benchmark]: BuchiAutomizer took 65796.35 ms. Allocated memory was 46.7 MB in the beginning and 194.0 MB in the end (delta: 147.3 MB). Free memory was 14.0 MB in the beginning and 38.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 123.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:17:28,147 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 194.0 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 08:17:28,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 9.8 MB in the beginning and 9.8 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 472.44 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 16.0 MB in the beginning and 25.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 74.87 ms. Allocated memory is still 44.6 MB. Free memory was 25.2 MB in the beginning and 23.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 61.83 ms. Allocated memory is still 44.6 MB. Free memory was 23.2 MB in the beginning and 21.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 499.02 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 21.4 MB in the beginning and 14.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 65796.35 ms. Allocated memory was 46.7 MB in the beginning and 194.0 MB in the end (delta: 147.3 MB). Free memory was 14.0 MB in the beginning and 38.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 123.1 MB. Max. memory is 14.3 GB. * Witness Printer took 5.07 ms. Allocated memory is still 194.0 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 5 locations. One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -4 * i + -1 * x + unknown-#length-unknown[x] and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[x] + -2 * i and consists of 11 locations. One deterministic module has affine ranking function unknown-#length-unknown[x] + -4 * i + -1 * x and consists of 3 locations. 8 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 65.7s and 14 iterations. TraceHistogramMax:3. Analysis of lassos took 61.0s. Construction of modules took 1.8s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 215 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 73 states and ocurred in iteration 12. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 258 SDtfs, 642 SDslu, 488 SDs, 0 SdLazy, 2211 SolverSat, 182 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU7 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital722 mio100 ax100 hnf99 lsp153 ukn33 mio100 lsp110 div109 bol100 ite100 ukn100 eq153 hnf83 smp68 dnf275 smp53 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 117ms VariablesStem: 18 VariablesLoop: 9 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...