./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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 0.1.25-906a4fb [2020-10-19 20:23:37,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:23:37,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:23:37,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:23:37,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:23:37,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:23:37,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:23:37,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:23:37,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:23:37,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:23:37,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:23:37,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:23:37,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:23:37,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:23:37,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:23:37,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:23:37,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:23:37,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:23:37,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:23:37,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:23:37,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:23:37,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:23:37,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:23:37,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:23:37,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:23:37,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:23:37,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:23:37,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:23:37,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:23:37,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:23:37,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:23:37,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:23:37,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:23:37,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:23:37,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:23:37,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:23:37,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:23:37,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:23:37,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:23:37,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:23:37,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:23:37,422 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:23:37,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:23:37,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:23:37,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:23:37,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:23:37,451 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:23:37,451 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:23:37,452 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:23:37,452 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:23:37,452 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:23:37,452 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:23:37,453 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:23:37,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:23:37,453 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:23:37,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:23:37,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:23:37,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:23:37,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:23:37,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:23:37,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:23:37,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:23:37,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:23:37,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:23:37,458 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:23:37,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:23:37,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:23:37,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:23:37,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:23:37,459 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:23:37,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:23:37,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:23:37,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:23:37,462 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:23:37,463 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:23:37,464 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 [2020-10-19 20:23:37,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:23:37,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:23:37,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:23:37,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:23:37,852 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:23:37,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max.i [2020-10-19 20:23:37,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21ffc572/cb1ed58bd8204089a94e15e9a4eab78c/FLAGfb42b8a88 [2020-10-19 20:23:38,377 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:23:38,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max.i [2020-10-19 20:23:38,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21ffc572/cb1ed58bd8204089a94e15e9a4eab78c/FLAGfb42b8a88 [2020-10-19 20:23:38,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21ffc572/cb1ed58bd8204089a94e15e9a4eab78c [2020-10-19 20:23:38,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:23:38,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:23:38,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:23:38,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:23:38,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:23:38,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:23:38" (1/1) ... [2020-10-19 20:23:38,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed9b63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:38, skipping insertion in model container [2020-10-19 20:23:38,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:23:38" (1/1) ... [2020-10-19 20:23:38,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:23:38,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:23:39,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:23:39,060 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:23:39,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:23:39,172 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:23:39,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39 WrapperNode [2020-10-19 20:23:39,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:23:39,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:23:39,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:23:39,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:23:39,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:23:39,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:23:39,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:23:39,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:23:39,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... [2020-10-19 20:23:39,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:23:39,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:23:39,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:23:39,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:23:39,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 20:23:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:23:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 20:23:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:23:39,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:23:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 20:23:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 20:23:39,745 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:23:39,745 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-19 20:23:39,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:23:39 BoogieIcfgContainer [2020-10-19 20:23:39,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:23:39,749 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:23:39,749 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:23:39,754 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:23:39,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:23:39,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:23:38" (1/3) ... [2020-10-19 20:23:39,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52c8c17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:23:39, skipping insertion in model container [2020-10-19 20:23:39,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:23:39,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:23:39" (2/3) ... [2020-10-19 20:23:39,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52c8c17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:23:39, skipping insertion in model container [2020-10-19 20:23:39,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:23:39,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:23:39" (3/3) ... [2020-10-19 20:23:39,762 INFO L373 chiAutomizerObserver]: Analyzing ICFG max.i [2020-10-19 20:23:39,883 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:23:39,884 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:23:39,884 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:23:39,884 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:23:39,884 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:23:39,885 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:23:39,885 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:23:39,885 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:23:39,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2020-10-19 20:23:39,922 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-10-19 20:23:39,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:39,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:39,929 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 20:23:39,930 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:23:39,930 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:23:39,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2020-10-19 20:23:39,933 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-10-19 20:23:39,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:39,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:39,934 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 20:23:39,934 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:23:39,941 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 31#L31true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 8#L22-3true [2020-10-19 20:23:39,942 INFO L796 eck$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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 9#L22-2true max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 8#L22-3true [2020-10-19 20:23:39,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:39,949 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-10-19 20:23:39,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:39,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137588951] [2020-10-19 20:23:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:40,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:40,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:40,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:40,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:40,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1326822, now seen corresponding path program 1 times [2020-10-19 20:23:40,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:40,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126362832] [2020-10-19 20:23:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:40,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:40,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:40,157 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:40,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:40,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1805089543, now seen corresponding path program 1 times [2020-10-19 20:23:40,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:40,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675207816] [2020-10-19 20:23:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:40,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:40,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:40,263 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:40,743 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-19 20:23:40,897 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-19 20:23:40,911 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:23:40,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:23:40,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:23:40,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:23:40,913 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:23:40,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:40,914 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:23:40,914 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:23:40,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration1_Lasso [2020-10-19 20:23:40,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:23:40,915 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:23:40,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:40,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,547 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-19 20:23:41,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:41,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:42,094 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:23:42,100 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,118 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) [2020-10-19 20:23:42,171 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 [2020-10-19 20:23:42,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:23:42,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:23:42,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:23:42,367 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,468 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 [2020-10-19 20:23:42,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:23:42,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:23:42,540 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 [2020-10-19 20:23:42,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:23:42,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,757 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,781 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 [2020-10-19 20:23:42,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:42,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:42,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:42,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:23:42,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:23:42,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:42,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:42,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:42,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:42,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:42,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:23:42,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:23:42,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:23:42,942 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-19 20:23:42,942 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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:42,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:23:42,954 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:23:42,954 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:23:42,956 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 [] [2020-10-19 20:23:43,149 INFO L297 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2020-10-19 20:23:43,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:43,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:23:43,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:43,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:23:43,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:43,259 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:23:43,261 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states. Second operand 3 states. [2020-10-19 20:23:43,322 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. [2020-10-19 20:23:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:23:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:23:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-10-19 20:23:43,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-19 20:23:43,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:23:43,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-19 20:23:43,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:23:43,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 3 letters. Loop has 8 letters. [2020-10-19 20:23:43,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:23:43,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 91 transitions. [2020-10-19 20:23:43,337 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:43,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 23 states and 32 transitions. [2020-10-19 20:23:43,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-19 20:23:43,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-19 20:23:43,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2020-10-19 20:23:43,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:43,346 INFO L691 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-10-19 20:23:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2020-10-19 20:23:43,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-19 20:23:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-19 20:23:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2020-10-19 20:23:43,377 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-10-19 20:23:43,377 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-10-19 20:23:43,378 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:23:43,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2020-10-19 20:23:43,379 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:43,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:43,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:43,380 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 20:23:43,380 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:23:43,381 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 [2020-10-19 20:23:43,381 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 297#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 298#L22-8 [2020-10-19 20:23:43,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,382 INFO L82 PathProgramCache]: Analyzing trace with hash 889511083, now seen corresponding path program 1 times [2020-10-19 20:23:43,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:43,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858648386] [2020-10-19 20:23:43,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:43,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858648386] [2020-10-19 20:23:43,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:23:43,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:23:43,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603880343] [2020-10-19 20:23:43,462 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:23:43,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 1 times [2020-10-19 20:23:43,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:43,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727424375] [2020-10-19 20:23:43,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,478 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:43,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:23:43,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:23:43,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:23:43,535 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-10-19 20:23:43,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:23:43,580 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-10-19 20:23:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:23:43,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2020-10-19 20:23:43,583 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:43,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 33 transitions. [2020-10-19 20:23:43,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-19 20:23:43,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-19 20:23:43,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2020-10-19 20:23:43,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:43,584 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-19 20:23:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2020-10-19 20:23:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2020-10-19 20:23:43,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-19 20:23:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2020-10-19 20:23:43,588 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-10-19 20:23:43,588 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-10-19 20:23:43,588 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:23:43,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2020-10-19 20:23:43,590 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:43,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:43,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:43,591 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:23:43,591 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:23:43,591 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:43,591 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 352#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 353#L22-8 [2020-10-19 20:23:43,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1805667996, now seen corresponding path program 1 times [2020-10-19 20:23:43,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:43,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806747340] [2020-10-19 20:23:43,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:43,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806747340] [2020-10-19 20:23:43,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036495736] [2020-10-19 20:23:43,642 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 [2020-10-19 20:23:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:43,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:23:43,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:43,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 20:23:43,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 20:23:43,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859196153] [2020-10-19 20:23:43,737 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:23:43,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,737 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 2 times [2020-10-19 20:23:43,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:43,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418684423] [2020-10-19 20:23:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:43,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:23:43,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 20:23:43,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-19 20:23:43,797 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-10-19 20:23:43,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:23:43,859 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-10-19 20:23:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:23:43,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2020-10-19 20:23:43,861 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:43,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2020-10-19 20:23:43,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-19 20:23:43,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-19 20:23:43,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2020-10-19 20:23:43,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:43,863 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-10-19 20:23:43,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2020-10-19 20:23:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-19 20:23:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-19 20:23:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-10-19 20:23:43,867 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-19 20:23:43,867 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-19 20:23:43,867 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:23:43,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2020-10-19 20:23:43,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:43,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:43,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:43,869 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-19 20:23:43,869 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:23:43,869 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:43,870 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 441#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 442#L22-8 [2020-10-19 20:23:43,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1818198429, now seen corresponding path program 2 times [2020-10-19 20:23:43,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:43,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308591822] [2020-10-19 20:23:43,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,976 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:43,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:43,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 3 times [2020-10-19 20:23:43,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:43,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903733232] [2020-10-19 20:23:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:43,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:44,005 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:44,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:44,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1198284866, now seen corresponding path program 1 times [2020-10-19 20:23:44,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:44,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214765717] [2020-10-19 20:23:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:44,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214765717] [2020-10-19 20:23:44,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886074818] [2020-10-19 20:23:44,295 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 [2020-10-19 20:23:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:44,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 35 conjunts are in the unsatisfiable core [2020-10-19 20:23:44,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:44,546 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-10-19 20:23:44,547 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 [2020-10-19 20:23:44,549 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 20:23:44,557 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 20:23:44,558 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 20:23:44,558 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:14 [2020-10-19 20:23:44,588 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 [2020-10-19 20:23:44,590 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 20:23:44,595 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 20:23:44,596 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 20:23:44,596 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2020-10-19 20:23:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:44,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 20:23:44,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-10-19 20:23:44,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058888635] [2020-10-19 20:23:44,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:23:44,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 20:23:44,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-19 20:23:44,661 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 17 states. [2020-10-19 20:23:46,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:23:46,127 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2020-10-19 20:23:46,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-19 20:23:46,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 159 transitions. [2020-10-19 20:23:46,137 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 34 [2020-10-19 20:23:46,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 159 transitions. [2020-10-19 20:23:46,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 106 [2020-10-19 20:23:46,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2020-10-19 20:23:46,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 159 transitions. [2020-10-19 20:23:46,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:46,144 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 159 transitions. [2020-10-19 20:23:46,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 159 transitions. [2020-10-19 20:23:46,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 39. [2020-10-19 20:23:46,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-19 20:23:46,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-10-19 20:23:46,150 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-19 20:23:46,150 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-19 20:23:46,151 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 20:23:46,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2020-10-19 20:23:46,151 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 20:23:46,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:46,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:46,152 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:23:46,152 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:23:46,152 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:46,153 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 688#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 689#L22-8 [2020-10-19 20:23:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:46,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2083741857, now seen corresponding path program 1 times [2020-10-19 20:23:46,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:46,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806015284] [2020-10-19 20:23:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:46,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:46,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:46,193 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:46,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 4 times [2020-10-19 20:23:46,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:46,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288467241] [2020-10-19 20:23:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:46,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:46,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:46,203 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:46,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:46,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2085565180, now seen corresponding path program 1 times [2020-10-19 20:23:46,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:46,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429078677] [2020-10-19 20:23:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:46,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:46,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:46,264 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:47,335 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 195 DAG size of output: 174 [2020-10-19 20:23:47,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 20:23:48,394 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 141 [2020-10-19 20:23:48,397 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:23:48,397 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:23:48,397 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:23:48,397 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:23:48,397 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:23:48,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:48,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:23:48,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:23:48,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration5_Lasso [2020-10-19 20:23:48,398 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:23:48,398 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:23:48,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:48,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:49,332 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-19 20:23:50,032 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-10-19 20:23:50,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:50,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:50,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:50,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:50,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:23:50,645 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2020-10-19 20:23:50,769 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-10-19 20:23:51,285 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-19 20:23:51,413 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:23:51,413 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 [2020-10-19 20:23:51,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,427 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) [2020-10-19 20:23:51,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,482 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) [2020-10-19 20:23:51,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:23:51,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:23:51,543 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:23:51,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,602 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) [2020-10-19 20:23:51,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,643 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) [2020-10-19 20:23:51,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:23:51,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:23:51,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,727 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) [2020-10-19 20:23:51,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,771 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) [2020-10-19 20:23:51,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,810 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 [2020-10-19 20:23:51,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,849 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 [2020-10-19 20:23:51,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,876 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) [2020-10-19 20:23:51,900 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 [2020-10-19 20:23:51,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,906 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 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:23:51,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,941 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 [2020-10-19 20:23:51,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:51,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:51,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:51,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:51,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:51,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:51,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:51,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:51,975 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 [2020-10-19 20:23:51,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:52,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:52,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:23:52,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:23:52,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:52,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:52,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:23:52,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:23:52,004 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 [2020-10-19 20:23:52,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:23:52,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:23:52,031 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 20:23:52,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:23:52,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:23:52,044 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 20:23:52,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:23:52,069 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:23:52,124 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-19 20:23:52,125 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 [2020-10-19 20:23:52,128 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:23:52,130 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:23:52,130 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:23:52,130 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 [] [2020-10-19 20:23:52,433 INFO L297 tatePredicateManager]: 55 out of 55 supporting invariants were superfluous and have been removed [2020-10-19 20:23:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:52,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:23:52,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:52,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:23:52,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:52,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:23:52,499 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:23:52,499 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-10-19 20:23:52,537 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. [2020-10-19 20:23:52,539 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 [2020-10-19 20:23:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:23:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-10-19 20:23:52,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-19 20:23:52,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:23:52,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 18 letters. Loop has 4 letters. [2020-10-19 20:23:52,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:23:52,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 14 letters. Loop has 8 letters. [2020-10-19 20:23:52,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:23:52,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2020-10-19 20:23:52,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:52,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 40 states and 52 transitions. [2020-10-19 20:23:52,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-19 20:23:52,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-10-19 20:23:52,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 52 transitions. [2020-10-19 20:23:52,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:52,545 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-19 20:23:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 52 transitions. [2020-10-19 20:23:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-19 20:23:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-19 20:23:52,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-10-19 20:23:52,548 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-19 20:23:52,548 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-19 20:23:52,548 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 20:23:52,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 52 transitions. [2020-10-19 20:23:52,549 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:52,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:52,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:52,550 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:23:52,550 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:23:52,550 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:52,550 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 [2020-10-19 20:23:52,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:52,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1591298555, now seen corresponding path program 1 times [2020-10-19 20:23:52,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:52,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227606654] [2020-10-19 20:23:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 20:23:52,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227606654] [2020-10-19 20:23:52,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:23:52,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:23:52,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44157041] [2020-10-19 20:23:52,591 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:23:52,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2020-10-19 20:23:52,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:52,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645018121] [2020-10-19 20:23:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:52,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:52,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:52,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:52,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:23:52,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:23:52,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:23:52,648 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. cyclomatic complexity: 17 Second operand 4 states. [2020-10-19 20:23:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:23:52,705 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-10-19 20:23:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 20:23:52,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 59 transitions. [2020-10-19 20:23:52,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:52,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 59 transitions. [2020-10-19 20:23:52,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-19 20:23:52,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-19 20:23:52,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 59 transitions. [2020-10-19 20:23:52,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:52,709 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 59 transitions. [2020-10-19 20:23:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 59 transitions. [2020-10-19 20:23:52,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2020-10-19 20:23:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-19 20:23:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2020-10-19 20:23:52,712 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-19 20:23:52,713 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-10-19 20:23:52,713 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 20:23:52,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2020-10-19 20:23:52,713 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:52,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:52,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:52,714 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:23:52,714 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:23:52,715 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:52,715 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 [2020-10-19 20:23:52,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:52,715 INFO L82 PathProgramCache]: Analyzing trace with hash -18080898, now seen corresponding path program 1 times [2020-10-19 20:23:52,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:52,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808247876] [2020-10-19 20:23:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 20:23:52,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808247876] [2020-10-19 20:23:52,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585429956] [2020-10-19 20:23:52,760 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 [2020-10-19 20:23:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:52,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:23:52,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-19 20:23:52,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 20:23:52,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-19 20:23:52,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669754966] [2020-10-19 20:23:52,848 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:23:52,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:52,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2020-10-19 20:23:52,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:52,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368185135] [2020-10-19 20:23:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:52,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:52,864 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:52,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:52,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:23:52,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 20:23:52,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-19 20:23:52,923 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-10-19 20:23:53,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:23:53,037 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2020-10-19 20:23:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 20:23:53,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 75 transitions. [2020-10-19 20:23:53,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:53,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 60 states and 75 transitions. [2020-10-19 20:23:53,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-10-19 20:23:53,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-10-19 20:23:53,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2020-10-19 20:23:53,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:53,042 INFO L691 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-10-19 20:23:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2020-10-19 20:23:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2020-10-19 20:23:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-19 20:23:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-10-19 20:23:53,045 INFO L714 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-10-19 20:23:53,045 INFO L594 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-10-19 20:23:53,046 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 20:23:53,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2020-10-19 20:23:53,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:53,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:53,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:53,047 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:23:53,047 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:23:53,048 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:53,048 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 [2020-10-19 20:23:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:53,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2011161481, now seen corresponding path program 2 times [2020-10-19 20:23:53,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:53,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695998983] [2020-10-19 20:23:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:23:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 20:23:53,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695998983] [2020-10-19 20:23:53,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571798146] [2020-10-19 20:23:53,293 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 [2020-10-19 20:23:53,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 20:23:53,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 20:23:53,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 46 conjunts are in the unsatisfiable core [2020-10-19 20:23:53,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:23:53,502 INFO L350 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2020-10-19 20:23:53,503 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 [2020-10-19 20:23:53,506 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 20:23:53,513 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 20:23:53,514 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 20:23:53,514 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:16 [2020-10-19 20:23:53,636 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 [2020-10-19 20:23:53,637 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 20:23:53,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 20:23:53,642 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 20:23:53,642 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2020-10-19 20:23:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 20:23:53,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 20:23:53,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2020-10-19 20:23:53,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230853135] [2020-10-19 20:23:53,676 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:23:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:53,677 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 3 times [2020-10-19 20:23:53,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:53,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967612404] [2020-10-19 20:23:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:53,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:53,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:53,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:53,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:23:53,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-19 20:23:53,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-19 20:23:53,743 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand 18 states. [2020-10-19 20:23:54,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:23:54,901 INFO L93 Difference]: Finished difference Result 132 states and 166 transitions. [2020-10-19 20:23:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-19 20:23:54,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 166 transitions. [2020-10-19 20:23:54,903 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 22 [2020-10-19 20:23:54,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 132 states and 166 transitions. [2020-10-19 20:23:54,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-10-19 20:23:54,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-10-19 20:23:54,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 166 transitions. [2020-10-19 20:23:54,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:23:54,911 INFO L691 BuchiCegarLoop]: Abstraction has 132 states and 166 transitions. [2020-10-19 20:23:54,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 166 transitions. [2020-10-19 20:23:54,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 56. [2020-10-19 20:23:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-19 20:23:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2020-10-19 20:23:54,919 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-10-19 20:23:54,919 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-10-19 20:23:54,919 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-19 20:23:54,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 70 transitions. [2020-10-19 20:23:54,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 20:23:54,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:23:54,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:23:54,921 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] [2020-10-19 20:23:54,921 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:23:54,922 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:23:54,922 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 [2020-10-19 20:23:54,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:54,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1618134471, now seen corresponding path program 1 times [2020-10-19 20:23:54,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:54,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73317444] [2020-10-19 20:23:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:54,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:55,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:55,016 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:55,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:55,017 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 4 times [2020-10-19 20:23:55,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:55,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842093245] [2020-10-19 20:23:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:55,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:55,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:55,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:55,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:23:55,030 INFO L82 PathProgramCache]: Analyzing trace with hash -249063589, now seen corresponding path program 1 times [2020-10-19 20:23:55,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:23:55,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276561233] [2020-10-19 20:23:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:23:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:55,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:23:55,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:23:55,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:23:57,176 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 256 DAG size of output: 219 [2020-10-19 20:23:57,183 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 20:24:00,735 WARN L193 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 195 DAG size of output: 165 [2020-10-19 20:24:00,738 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:24:00,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:24:00,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:24:00,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:24:00,738 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:24:00,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:00,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:24:00,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:24:00,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration9_Lasso [2020-10-19 20:24:00,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:24:00,739 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:24:00,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:00,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:03,193 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-19 20:24:04,228 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 105 [2020-10-19 20:24:04,429 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2020-10-19 20:24:04,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:04,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:04,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:04,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:04,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:04,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:05,341 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2020-10-19 20:24:05,413 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-10-19 20:24:06,941 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2020-10-19 20:24:07,020 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:24:07,022 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) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,039 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) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,072 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) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,099 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) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,131 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) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,157 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) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,183 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 [2020-10-19 20:24:07,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,186 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 [2020-10-19 20:24:07,209 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 [2020-10-19 20:24:07,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,212 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 [2020-10-19 20:24:07,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,241 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 [2020-10-19 20:24:07,264 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 [2020-10-19 20:24:07,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 20:24:07,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,293 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 [2020-10-19 20:24:07,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,323 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 [2020-10-19 20:24:07,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,355 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 [2020-10-19 20:24:07,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,381 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 [2020-10-19 20:24:07,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,418 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 [2020-10-19 20:24:07,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,448 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) [2020-10-19 20:24:07,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,489 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) [2020-10-19 20:24:07,519 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:24:07,547 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 Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:07,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,552 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 [2020-10-19 20:24:07,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,581 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 [2020-10-19 20:24:07,604 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 [2020-10-19 20:24:07,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,610 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 [2020-10-19 20:24:07,634 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 [2020-10-19 20:24:07,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,640 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 [2020-10-19 20:24:07,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,667 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 [2020-10-19 20:24:07,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,693 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 [2020-10-19 20:24:07,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:07,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 20:24:07,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,750 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 [2020-10-19 20:24:07,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:07,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:07,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:07,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:07,777 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 [2020-10-19 20:24:07,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:07,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:07,801 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 20:24:07,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:07,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:07,823 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 20:24:07,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:07,867 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:24:07,938 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-19 20:24:07,938 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 [2020-10-19 20:24:07,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:24:07,943 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:24:07,943 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:24:07,943 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 [] [2020-10-19 20:24:08,504 INFO L297 tatePredicateManager]: 76 out of 76 supporting invariants were superfluous and have been removed [2020-10-19 20:24:08,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:24:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:08,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:24:08,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:08,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:24:08,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:24:08,601 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:24:08,601 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-10-19 20:24:08,641 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. [2020-10-19 20:24:08,643 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 [2020-10-19 20:24:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:24:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-10-19 20:24:08,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 25 letters. Loop has 2 letters. [2020-10-19 20:24:08,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:08,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 27 letters. Loop has 2 letters. [2020-10-19 20:24:08,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:08,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 25 letters. Loop has 4 letters. [2020-10-19 20:24:08,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:08,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2020-10-19 20:24:08,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:08,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 57 states and 72 transitions. [2020-10-19 20:24:08,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-19 20:24:08,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-19 20:24:08,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 72 transitions. [2020-10-19 20:24:08,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:24:08,649 INFO L691 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-10-19 20:24:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 72 transitions. [2020-10-19 20:24:08,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-19 20:24:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-19 20:24:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-10-19 20:24:08,654 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-10-19 20:24:08,654 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-10-19 20:24:08,654 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-19 20:24:08,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 72 transitions. [2020-10-19 20:24:08,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:08,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:24:08,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:24:08,656 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] [2020-10-19 20:24:08,656 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:24:08,657 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:24:08,657 INFO L796 eck$LassoCheckResult]: Loop: 2170#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2168#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2166#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 2167#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2170#L22-13 [2020-10-19 20:24:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:08,658 INFO L82 PathProgramCache]: Analyzing trace with hash -249063647, now seen corresponding path program 1 times [2020-10-19 20:24:08,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:08,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706593213] [2020-10-19 20:24:08,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-19 20:24:08,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706593213] [2020-10-19 20:24:08,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:24:08,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:24:08,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653320836] [2020-10-19 20:24:08,693 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:24:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 1 times [2020-10-19 20:24:08,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:08,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513631344] [2020-10-19 20:24:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,702 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:08,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:24:08,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:24:08,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:24:08,746 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-10-19 20:24:08,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:24:08,781 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-10-19 20:24:08,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 20:24:08,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 72 transitions. [2020-10-19 20:24:08,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:08,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 72 transitions. [2020-10-19 20:24:08,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-19 20:24:08,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-10-19 20:24:08,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 72 transitions. [2020-10-19 20:24:08,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:24:08,785 INFO L691 BuchiCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-10-19 20:24:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 72 transitions. [2020-10-19 20:24:08,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-10-19 20:24:08,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-19 20:24:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2020-10-19 20:24:08,790 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-19 20:24:08,790 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-19 20:24:08,790 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-19 20:24:08,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 71 transitions. [2020-10-19 20:24:08,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:08,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:24:08,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:24:08,793 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] [2020-10-19 20:24:08,793 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:24:08,793 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:24:08,794 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 2289#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2292#L22-13 [2020-10-19 20:24:08,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:08,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1168061379, now seen corresponding path program 1 times [2020-10-19 20:24:08,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:08,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257886313] [2020-10-19 20:24:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,878 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:08,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:08,879 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 2 times [2020-10-19 20:24:08,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:08,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742568347] [2020-10-19 20:24:08,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:08,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:08,889 INFO L82 PathProgramCache]: Analyzing trace with hash 934015144, now seen corresponding path program 1 times [2020-10-19 20:24:08,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:08,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885570195] [2020-10-19 20:24:08,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:08,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:08,984 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:09,088 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-19 20:24:11,865 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 308 DAG size of output: 251 [2020-10-19 20:24:11,887 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 20:24:15,518 WARN L193 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 215 DAG size of output: 173 [2020-10-19 20:24:15,527 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:24:15,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:24:15,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:24:15,528 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:24:15,528 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:24:15,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:15,528 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:24:15,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:24:15,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration11_Lasso [2020-10-19 20:24:15,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:24:15,528 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:24:15,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:15,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:16,981 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 49 [2020-10-19 20:24:17,986 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2020-10-19 20:24:18,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:18,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:18,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:18,955 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 114 [2020-10-19 20:24:19,057 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2020-10-19 20:24:20,184 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-19 20:24:20,295 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:24:20,295 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) [2020-10-19 20:24:20,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:20,312 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 [2020-10-19 20:24:20,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,346 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 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 [2020-10-19 20:24:20,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,381 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 [2020-10-19 20:24:20,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,407 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 [2020-10-19 20:24:20,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,440 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 [2020-10-19 20:24:20,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,468 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 [2020-10-19 20:24:20,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,494 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 [2020-10-19 20:24:20,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,525 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 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 [2020-10-19 20:24:20,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,555 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) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:20,581 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 [2020-10-19 20:24:20,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,584 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 [2020-10-19 20:24:20,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,609 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 [2020-10-19 20:24:20,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,636 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 [2020-10-19 20:24:20,662 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 [2020-10-19 20:24:20,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,666 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 [2020-10-19 20:24:20,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,693 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 [2020-10-19 20:24:20,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,720 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 [2020-10-19 20:24:20,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,750 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) Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:20,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,779 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 [2020-10-19 20:24:20,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,808 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 [2020-10-19 20:24:20,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,835 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 [2020-10-19 20:24:20,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,871 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 [2020-10-19 20:24:20,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,903 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 [2020-10-19 20:24:20,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:20,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:20,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:20,929 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 [2020-10-19 20:24:20,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,959 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 [2020-10-19 20:24:20,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:20,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:20,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:20,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:20,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:20,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:20,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:20,995 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 [2020-10-19 20:24:21,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:21,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:21,022 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 20:24:21,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:21,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:21,039 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 20:24:21,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:21,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:24:21,199 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-10-19 20:24:21,200 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) [2020-10-19 20:24:21,203 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:21,209 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 20:24:21,209 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:24:21,210 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] [2020-10-19 20:24:21,717 INFO L297 tatePredicateManager]: 56 out of 58 supporting invariants were superfluous and have been removed [2020-10-19 20:24:21,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:24:21,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:21,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 20:24:21,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:21,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 20:24:21,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:24:21,953 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 [2020-10-19 20:24:21,954 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20 Second operand 8 states. [2020-10-19 20:24:22,384 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. [2020-10-19 20:24:22,385 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 [2020-10-19 20:24:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-19 20:24:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 83 transitions. [2020-10-19 20:24:22,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 29 letters. Loop has 4 letters. [2020-10-19 20:24:22,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:22,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 33 letters. Loop has 4 letters. [2020-10-19 20:24:22,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:22,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 29 letters. Loop has 8 letters. [2020-10-19 20:24:22,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:22,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 158 transitions. [2020-10-19 20:24:22,390 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:22,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 85 states and 106 transitions. [2020-10-19 20:24:22,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-19 20:24:22,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-19 20:24:22,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 106 transitions. [2020-10-19 20:24:22,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:24:22,391 INFO L691 BuchiCegarLoop]: Abstraction has 85 states and 106 transitions. [2020-10-19 20:24:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 106 transitions. [2020-10-19 20:24:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2020-10-19 20:24:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-19 20:24:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2020-10-19 20:24:22,395 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-10-19 20:24:22,395 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-10-19 20:24:22,395 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-19 20:24:22,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 87 transitions. [2020-10-19 20:24:22,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:22,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:24:22,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:24:22,397 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] [2020-10-19 20:24:22,397 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:24:22,397 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:24:22,398 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 2856#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2859#L22-13 [2020-10-19 20:24:22,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:22,398 INFO L82 PathProgramCache]: Analyzing trace with hash 477776739, now seen corresponding path program 2 times [2020-10-19 20:24:22,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:22,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059597352] [2020-10-19 20:24:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 20:24:22,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059597352] [2020-10-19 20:24:22,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101542525] [2020-10-19 20:24:22,509 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 [2020-10-19 20:24:22,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 20:24:22,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 20:24:22,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 20:24:22,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 20:24:22,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 20:24:22,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-10-19 20:24:22,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435834315] [2020-10-19 20:24:22,651 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:24:22,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:22,651 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 3 times [2020-10-19 20:24:22,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:22,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117833996] [2020-10-19 20:24:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:22,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:22,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:22,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:22,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:24:22,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 20:24:22,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-19 20:24:22,730 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. cyclomatic complexity: 22 Second operand 13 states. [2020-10-19 20:24:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:24:23,152 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2020-10-19 20:24:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 20:24:23,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 100 transitions. [2020-10-19 20:24:23,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:23,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 82 states and 100 transitions. [2020-10-19 20:24:23,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-10-19 20:24:23,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-10-19 20:24:23,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 100 transitions. [2020-10-19 20:24:23,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:24:23,157 INFO L691 BuchiCegarLoop]: Abstraction has 82 states and 100 transitions. [2020-10-19 20:24:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 100 transitions. [2020-10-19 20:24:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2020-10-19 20:24:23,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-19 20:24:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2020-10-19 20:24:23,172 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-10-19 20:24:23,172 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-10-19 20:24:23,174 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-19 20:24:23,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 89 transitions. [2020-10-19 20:24:23,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 20:24:23,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:24:23,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:24:23,176 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] [2020-10-19 20:24:23,180 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 20:24:23,180 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 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 [2020-10-19 20:24:23,181 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~mem4;havoc max_#t~mem5;havoc max_#t~ite6; 3147#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3150#L22-13 [2020-10-19 20:24:23,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:23,181 INFO L82 PathProgramCache]: Analyzing trace with hash -417996923, now seen corresponding path program 3 times [2020-10-19 20:24:23,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:23,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315132810] [2020-10-19 20:24:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:23,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:23,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:23,256 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:23,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:23,257 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 4 times [2020-10-19 20:24:23,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:23,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233557152] [2020-10-19 20:24:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:23,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:23,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:23,263 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:23,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1568478358, now seen corresponding path program 2 times [2020-10-19 20:24:23,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:24:23,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272449892] [2020-10-19 20:24:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:24:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:23,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:24:23,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:24:23,325 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:24:31,569 WARN L193 SmtUtils]: Spent 8.19 s on a formula simplification. DAG size of input: 363 DAG size of output: 282 [2020-10-19 20:24:31,587 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 20:24:39,020 WARN L193 SmtUtils]: Spent 7.41 s on a formula simplification. DAG size of input: 213 DAG size of output: 177 [2020-10-19 20:24:39,025 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:24:39,025 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:24:39,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:24:39,025 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:24:39,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:24:39,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:39,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:24:39,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:24:39,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration13_Lasso [2020-10-19 20:24:39,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:24:39,026 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:24:39,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:39,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:41,474 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-19 20:24:42,426 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2020-10-19 20:24:42,598 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-10-19 20:24:42,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:42,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:42,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:42,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:42,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:24:43,445 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-10-19 20:24:43,531 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-10-19 20:24:44,607 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-19 20:24:44,697 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:24:44,697 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 [2020-10-19 20:24:44,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,703 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 [2020-10-19 20:24:44,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:44,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:44,731 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 [2020-10-19 20:24:44,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,760 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 [2020-10-19 20:24:44,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,788 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 [2020-10-19 20:24:44,812 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 [2020-10-19 20:24:44,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,815 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:24:44,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:24:44,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,843 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 [2020-10-19 20:24:44,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,873 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) [2020-10-19 20:24:44,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,901 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 [2020-10-19 20:24:44,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 20:24:44,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,931 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 [2020-10-19 20:24:44,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,956 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 [2020-10-19 20:24:44,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:44,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:44,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:44,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:44,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:44,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:44,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:44,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:44,983 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 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 [2020-10-19 20:24:45,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:45,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:45,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:45,010 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 [2020-10-19 20:24:45,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:45,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:45,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:45,039 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 [2020-10-19 20:24:45,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:45,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:45,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:45,065 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 [2020-10-19 20:24:45,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:45,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:45,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:45,091 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 [2020-10-19 20:24:45,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,122 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 [2020-10-19 20:24:45,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,152 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 [2020-10-19 20:24:45,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,181 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 [2020-10-19 20:24:45,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,218 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 [2020-10-19 20:24:45,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,255 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 [2020-10-19 20:24:45,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:45,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:45,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:45,309 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 [2020-10-19 20:24:45,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:24:45,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:24:45,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:24:45,333 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 [2020-10-19 20:24:45,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,362 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 [2020-10-19 20:24:45,385 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 [2020-10-19 20:24:45,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:24:45,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:24:45,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,394 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 [2020-10-19 20:24:45,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:24:45,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:24:45,418 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 20:24:45,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:24:45,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:24:45,430 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 20:24:45,431 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:24:45,469 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:24:45,583 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-10-19 20:24:45,583 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) [2020-10-19 20:24:45,591 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 [2020-10-19 20:24:45,599 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:24:45,600 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:24:45,600 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 [] [2020-10-19 20:24:46,187 INFO L297 tatePredicateManager]: 69 out of 69 supporting invariants were superfluous and have been removed [2020-10-19 20:24:46,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:24:46,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:24:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:46,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:24:46,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:24:46,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:24:46,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:24:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:24:46,289 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:24:46,289 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 89 transitions. cyclomatic complexity: 22 Second operand 3 states. [2020-10-19 20:24:46,315 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. [2020-10-19 20:24:46,316 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 [2020-10-19 20:24:46,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:24:46,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-10-19 20:24:46,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 39 letters. Loop has 4 letters. [2020-10-19 20:24:46,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:46,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 43 letters. Loop has 4 letters. [2020-10-19 20:24:46,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:46,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 39 letters. Loop has 8 letters. [2020-10-19 20:24:46,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:24:46,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 95 transitions. [2020-10-19 20:24:46,319 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:24:46,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 0 states and 0 transitions. [2020-10-19 20:24:46,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:24:46,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:24:46,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:24:46,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:24:46,321 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:24:46,321 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:24:46,321 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:24:46,321 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-19 20:24:46,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:24:46,321 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:24:46,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:24:46,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:24:46 BoogieIcfgContainer [2020-10-19 20:24:46,329 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:24:46,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:24:46,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:24:46,330 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:24:46,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:23:39" (3/4) ... [2020-10-19 20:24:46,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:24:46,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:24:46,337 INFO L168 Benchmark]: Toolchain (without parser) took 67578.47 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 551.0 MB). Free memory was 958.6 MB in the beginning and 1.4 GB in the end (delta: -443.9 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,337 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:24:46,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,338 INFO L168 Benchmark]: Boogie Preprocessor took 71.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,339 INFO L168 Benchmark]: RCFGBuilder took 414.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,339 INFO L168 Benchmark]: BuchiAutomizer took 66580.34 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 437.8 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -340.5 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,340 INFO L168 Benchmark]: Witness Printer took 5.64 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2020-10-19 20:24:46,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 408.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -150.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 414.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 66580.34 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 437.8 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -340.5 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.64 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 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 66.4s and 14 iterations. TraceHistogramMax:3. Analysis of lassos took 61.5s. Construction of modules took 1.9s. Büchi inclusion checks took 2.6s. 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, 1.9s 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: 103ms 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...