./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/invert_string-1.c --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/loops/invert_string-1.c -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 1b9a71645175fee79e6d6cd797db38ce6044ffb9 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:10:09,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:10:09,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:10:09,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:10:09,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:10:09,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:10:09,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:10:09,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:10:09,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:10:09,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:10:09,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:10:09,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:10:09,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:10:09,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:10:09,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:10:09,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:10:09,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:10:09,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:10:09,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:10:09,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:10:09,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:10:09,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:10:09,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:10:09,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:10:09,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:10:09,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:10:09,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:10:09,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:10:09,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:10:09,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:10:09,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:10:09,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:10:09,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:10:09,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:10:09,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:10:09,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:10:09,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:10:09,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:10:09,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:10:09,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:10:09,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:10:09,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:10:09,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:10:09,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:10:09,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:10:09,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:10:09,533 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:10:09,533 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:10:09,533 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:10:09,534 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:10:09,534 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:10:09,534 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:10:09,535 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:10:09,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:10:09,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:10:09,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:10:09,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:10:09,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:10:09,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:10:09,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:10:09,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:10:09,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:10:09,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:10:09,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:10:09,538 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:10:09,538 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:10:09,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:10:09,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:10:09,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:10:09,539 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:10:09,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:10:09,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:10:09,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:10:09,539 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:10:09,541 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:10:09,541 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 -> 1b9a71645175fee79e6d6cd797db38ce6044ffb9 [2020-10-19 19:10:09,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:10:09,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:10:09,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:10:09,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:10:09,872 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:10:09,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/invert_string-1.c [2020-10-19 19:10:09,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e80999c7/f1500c81b97a4fb1b176dd668885e06c/FLAG463383b45 [2020-10-19 19:10:10,410 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:10:10,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/invert_string-1.c [2020-10-19 19:10:10,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e80999c7/f1500c81b97a4fb1b176dd668885e06c/FLAG463383b45 [2020-10-19 19:10:10,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e80999c7/f1500c81b97a4fb1b176dd668885e06c [2020-10-19 19:10:10,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:10:10,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:10:10,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:10:10,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:10:10,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:10:10,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:10:10" (1/1) ... [2020-10-19 19:10:10,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184b88a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:10, skipping insertion in model container [2020-10-19 19:10:10,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:10:10" (1/1) ... [2020-10-19 19:10:10,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:10:10,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:10:11,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:10:11,033 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:10:11,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:10:11,092 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:10:11,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11 WrapperNode [2020-10-19 19:10:11,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:10:11,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:10:11,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:10:11,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:10:11,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:10:11,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:10:11,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:10:11,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:10:11,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (1/1) ... [2020-10-19 19:10:11,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:10:11,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:10:11,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:10:11,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:10:11,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (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 19:10:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:10:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:10:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 19:10:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:10:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:10:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 19:10:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 19:10:11,540 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:10:11,541 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-19 19:10:11,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:10:11 BoogieIcfgContainer [2020-10-19 19:10:11,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:10:11,544 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:10:11,544 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:10:11,548 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:10:11,549 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:10:11,549 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:10:10" (1/3) ... [2020-10-19 19:10:11,550 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f8c273a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:10:11, skipping insertion in model container [2020-10-19 19:10:11,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:10:11,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:10:11" (2/3) ... [2020-10-19 19:10:11,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f8c273a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:10:11, skipping insertion in model container [2020-10-19 19:10:11,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:10:11,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:10:11" (3/3) ... [2020-10-19 19:10:11,554 INFO L373 chiAutomizerObserver]: Analyzing ICFG invert_string-1.c [2020-10-19 19:10:11,617 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:10:11,617 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:10:11,618 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:10:11,618 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:10:11,618 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:10:11,618 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:10:11,619 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:10:11,619 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:10:11,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-10-19 19:10:11,670 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 19:10:11,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:10:11,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:10:11,686 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 19:10:11,692 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:10:11,692 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:10:11,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-10-19 19:10:11,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-10-19 19:10:11,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:10:11,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:10:11,699 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 19:10:11,700 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:10:11,718 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 14#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 8#L17true assume !!(main_~MAX~0 > 0); 3#L17-2true call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 12#L22-3true [2020-10-19 19:10:11,720 INFO L796 eck$LassoCheckResult]: Loop: 12#L22-3true assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 13#L22-2true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 12#L22-3true [2020-10-19 19:10:11,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:11,729 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-19 19:10:11,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:11,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531699323] [2020-10-19 19:10:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:11,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:11,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:11,929 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:11,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:11,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2020-10-19 19:10:11,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:11,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499729875] [2020-10-19 19:10:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:11,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:11,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:11,949 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:11,951 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2020-10-19 19:10:11,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:11,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158795117] [2020-10-19 19:10:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:11,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:12,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:12,045 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:12,546 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-19 19:10:12,973 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2020-10-19 19:10:12,993 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:10:12,994 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:10:12,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:10:12,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:10:12,995 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:10:12,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:12,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:10:12,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:10:12,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration1_Lasso [2020-10-19 19:10:12,997 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:10:12,997 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:10:13,039 INFO 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 19:10:13,051 INFO 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 19:10:13,058 INFO 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 19:10:13,061 INFO 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 19:10:13,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,075 INFO 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 19:10:13,081 INFO 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 19:10:13,086 INFO 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 19:10:13,094 INFO 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 19:10:13,099 INFO 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 19:10:13,448 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-19 19:10:13,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,498 INFO 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 19:10:13,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:13,505 INFO 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 19:10:13,938 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:10:13,944 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:13,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:13,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:13,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:13,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:13,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:13,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:13,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:13,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:13,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:14,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:14,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:14,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:14,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:14,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:14,050 INFO L522 LassoAnalysis]: Proving 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 19:10:14,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:14,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:14,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:14,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:14,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:14,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:14,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:14,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,160 INFO L522 LassoAnalysis]: Proving 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 19:10:14,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:14,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:14,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:14,200 INFO L522 LassoAnalysis]: Proving 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 19:10:14,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,233 INFO L522 LassoAnalysis]: Proving 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 19:10:14,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,299 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:14,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:14,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:14,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:14,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,411 INFO L522 LassoAnalysis]: Proving 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 19:10:14,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:14,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,461 INFO L522 LassoAnalysis]: Proving 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 19:10:14,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:14,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,560 INFO L522 LassoAnalysis]: Proving 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 19:10:14,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,618 INFO L522 LassoAnalysis]: Proving 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 19:10:14,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,662 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 19:10:14,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,721 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:14,752 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 19:10:14,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,799 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 19:10:14,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,849 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:14,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:14,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:14,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:14,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:14,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:14,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:14,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:14,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:14,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:14,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:14,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:10:15,141 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-10-19 19:10:15,141 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 8 variables to zero. 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 19:10:15,146 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:15,149 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:10:15,149 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:10:15,150 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#str1~0.base)_1, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~#str1~0.base)_1 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~#str1~0.offset >= 0] [2020-10-19 19:10:15,241 INFO L297 tatePredicateManager]: 16 out of 17 supporting invariants were superfluous and have been removed [2020-10-19 19:10:15,253 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 19:10:15,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:15,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 19:10:15,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:10:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:15,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:10:15,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:10:15,351 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 19:10:15,369 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 19:10:15,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 3 states. [2020-10-19 19:10:15,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 3 states. Result 40 states and 57 transitions. Complement of second has 8 states. [2020-10-19 19:10:15,441 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 19:10:15,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:10:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-19 19:10:15,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 19:10:15,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:15,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-19 19:10:15,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:15,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 4 letters. Loop has 4 letters. [2020-10-19 19:10:15,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:15,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 57 transitions. [2020-10-19 19:10:15,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:10:15,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 17 states and 22 transitions. [2020-10-19 19:10:15,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-19 19:10:15,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-19 19:10:15,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2020-10-19 19:10:15,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:10:15,461 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 19:10:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2020-10-19 19:10:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-19 19:10:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 19:10:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-10-19 19:10:15,492 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 19:10:15,492 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 19:10:15,492 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:10:15,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-10-19 19:10:15,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-19 19:10:15,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:10:15,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:10:15,494 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 19:10:15,494 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:10:15,495 INFO L794 eck$LassoCheckResult]: Stem: 195#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 193#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 186#L17 assume !!(main_~MAX~0 > 0); 179#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 180#L22-3 assume !(main_~i~0 < main_~MAX~0); 189#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 181#L29-3 [2020-10-19 19:10:15,495 INFO L796 eck$LassoCheckResult]: Loop: 181#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 183#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 181#L29-3 [2020-10-19 19:10:15,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:15,495 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2020-10-19 19:10:15,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:15,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807576773] [2020-10-19 19:10:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:15,561 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 19:10:15,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807576773] [2020-10-19 19:10:15,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:10:15,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 19:10:15,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889911462] [2020-10-19 19:10:15,566 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:10:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:15,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2020-10-19 19:10:15,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:15,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925073194] [2020-10-19 19:10:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:15,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:10:15,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 19:10:15,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 19:10:15,634 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-19 19:10:15,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:10:15,674 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-10-19 19:10:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 19:10:15,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 24 transitions. [2020-10-19 19:10:15,677 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:10:15,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 22 transitions. [2020-10-19 19:10:15,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-10-19 19:10:15,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-19 19:10:15,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2020-10-19 19:10:15,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:10:15,679 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-10-19 19:10:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2020-10-19 19:10:15,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2020-10-19 19:10:15,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 19:10:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-10-19 19:10:15,682 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-10-19 19:10:15,682 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-10-19 19:10:15,682 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:10:15,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2020-10-19 19:10:15,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:10:15,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:10:15,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:10:15,684 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:10:15,684 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:10:15,684 INFO L794 eck$LassoCheckResult]: Stem: 238#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 237#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 232#L17 assume !!(main_~MAX~0 > 0); 225#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 226#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 235#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 236#L22-3 assume !(main_~i~0 < main_~MAX~0); 234#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 227#L29-3 [2020-10-19 19:10:15,685 INFO L796 eck$LassoCheckResult]: Loop: 227#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 229#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 227#L29-3 [2020-10-19 19:10:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:15,685 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2020-10-19 19:10:15,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:15,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025580293] [2020-10-19 19:10:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,729 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 2 times [2020-10-19 19:10:15,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:15,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954235469] [2020-10-19 19:10:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,769 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:15,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:15,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1899811567, now seen corresponding path program 1 times [2020-10-19 19:10:15,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:15,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906238541] [2020-10-19 19:10:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:15,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:15,865 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:16,553 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 113 [2020-10-19 19:10:17,114 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 90 [2020-10-19 19:10:17,118 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:10:17,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:10:17,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:10:17,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:10:17,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:10:17,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:17,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:10:17,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:10:17,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration3_Lasso [2020-10-19 19:10:17,119 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:10:17,119 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:10:17,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,132 INFO 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 19:10:17,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,144 INFO 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 19:10:17,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,166 INFO 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 19:10:17,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:17,172 INFO 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 19:10:17,174 INFO 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 19:10:17,463 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-19 19:10:17,510 INFO 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 19:10:17,513 INFO 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 19:10:17,938 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:10:17,939 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:17,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:17,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:17,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:17,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:17,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:17,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:17,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:17,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:17,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:17,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:17,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:17,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:17,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:17,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:17,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:17,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:17,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,039 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:18,069 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 19:10:18,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,104 INFO L522 LassoAnalysis]: Proving 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 19:10:18,154 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 19:10:18,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,158 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,193 INFO L522 LassoAnalysis]: Proving 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 19:10:18,215 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:18,221 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 19:10:18,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,248 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 19:10:18,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,275 INFO L522 LassoAnalysis]: Proving 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 19:10:18,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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 19:10:18,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:18,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,407 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:18,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:18,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,499 INFO L522 LassoAnalysis]: Proving 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 19:10:18,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:18,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:18,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:18,535 INFO L522 LassoAnalysis]: Proving 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 19:10:18,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:18,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,560 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:18,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:18,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:18,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,610 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:18,634 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 19:10:18,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:18,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 47 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 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 19:10:18,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:18,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:18,680 INFO L522 LassoAnalysis]: Proving 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 19:10:18,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:18,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:18,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:18,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:18,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:18,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:18,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:18,729 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:10:18,776 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-10-19 19:10:18,776 INFO L444 ModelExtractionUtils]: 10 out of 28 variables were initially zero. Simplification set additionally 15 variables to zero. 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) [2020-10-19 19:10:18,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:18,781 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:10:18,781 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:10:18,782 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#str1~0.base)_2, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~#str1~0.base)_2 + 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-19 19:10:18,869 INFO L297 tatePredicateManager]: 18 out of 18 supporting invariants were superfluous and have been removed [2020-10-19 19:10:18,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 19:10:18,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:18,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:10:18,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:10:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:18,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 19:10:18,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:10:18,947 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 19:10:18,947 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 19:10:18,947 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-19 19:10:18,966 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 7 states. [2020-10-19 19:10:18,969 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 19:10:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:10:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-10-19 19:10:18,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-19 19:10:18,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:18,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-19 19:10:18,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:18,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-19 19:10:18,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:18,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-10-19 19:10:18,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:10:18,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 19 transitions. [2020-10-19 19:10:18,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 19:10:18,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 19:10:18,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2020-10-19 19:10:18,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:10:18,977 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-19 19:10:18,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2020-10-19 19:10:18,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 19:10:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 19:10:18,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2020-10-19 19:10:18,979 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-19 19:10:18,979 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-19 19:10:18,979 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 19:10:18,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2020-10-19 19:10:18,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:10:18,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:10:18,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:10:18,981 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:10:18,981 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:10:18,982 INFO L794 eck$LassoCheckResult]: Stem: 398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 397#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 392#L17 assume !!(main_~MAX~0 > 0); 384#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 385#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 395#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 396#L22-3 assume !(main_~i~0 < main_~MAX~0); 394#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 386#L29-3 assume !(main_~i~0 >= 0); 387#L29-4 main_~j~0 := main_~MAX~0 - 1;main_~i~0 := 0; 399#L35-3 [2020-10-19 19:10:18,982 INFO L796 eck$LassoCheckResult]: Loop: 399#L35-3 assume !!(main_~i~0 < main_~MAX~0);call main_#t~mem14 := read~int(main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);call main_#t~mem15 := read~int(main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);__VERIFIER_assert_#in~cond := (if main_#t~mem14 == main_#t~mem15 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 393#L7 assume !(0 == __VERIFIER_assert_~cond); 390#L7-2 havoc main_#t~mem15;havoc main_#t~mem14;main_#t~post16 := main_~j~0;main_~j~0 := main_#t~post16 - 1;havoc main_#t~post16; 391#L35-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 399#L35-3 [2020-10-19 19:10:18,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:18,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1899811625, now seen corresponding path program 1 times [2020-10-19 19:10:18,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:18,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4377067] [2020-10-19 19:10:18,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:19,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 19:10:19,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4377067] [2020-10-19 19:10:19,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:10:19,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 19:10:19,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398660801] [2020-10-19 19:10:19,013 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:10:19,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:19,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2317836, now seen corresponding path program 1 times [2020-10-19 19:10:19,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:19,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236618926] [2020-10-19 19:10:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:19,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:10:19,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 19:10:19,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 19:10:19,144 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 19:10:19,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:10:19,185 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-10-19 19:10:19,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 19:10:19,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2020-10-19 19:10:19,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:10:19,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 18 transitions. [2020-10-19 19:10:19,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 19:10:19,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 19:10:19,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2020-10-19 19:10:19,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:10:19,189 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-19 19:10:19,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2020-10-19 19:10:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 19:10:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 19:10:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-19 19:10:19,191 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-19 19:10:19,191 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-19 19:10:19,192 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 19:10:19,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2020-10-19 19:10:19,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:10:19,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:10:19,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:10:19,193 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:10:19,193 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:10:19,193 INFO L794 eck$LassoCheckResult]: Stem: 440#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 438#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~post12, main_#t~post10, main_#t~mem14, main_#t~mem15, main_#t~post16, main_#t~post13, main_~MAX~0, main_~#str1~0.base, main_~#str1~0.offset, main_~#str2~0.base, main_~#str2~0.offset, main_~cont~0, main_~i~0, main_~j~0;main_~MAX~0 := (if main_#t~nondet7 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet7 % 4294967296 % 4294967296 else main_#t~nondet7 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet7; 433#L17 assume !!(main_~MAX~0 > 0); 425#L17-2 call main_~#str1~0.base, main_~#str1~0.offset := #Ultimate.allocOnStack(main_~MAX~0);call main_~#str2~0.base, main_~#str2~0.offset := #Ultimate.allocOnStack(main_~MAX~0);havoc main_~cont~0;havoc main_~i~0;havoc main_~j~0;main_~cont~0 := 0;main_~i~0 := 0; 426#L22-3 assume !!(main_~i~0 < main_~MAX~0);call write~int(main_#t~nondet9, main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 436#L22-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 437#L22-3 assume !(main_~i~0 < main_~MAX~0); 435#L22-4 call write~int(0, main_~#str1~0.base, main_~#str1~0.offset + (main_~MAX~0 - 1), 1);main_~j~0 := 0;main_~i~0 := main_~MAX~0 - 1; 427#L29-3 assume !!(main_~i~0 >= 0);call main_#t~mem11 := read~int(main_~#str1~0.base, main_~#str1~0.offset, 1);call write~int(main_#t~mem11, main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);havoc main_#t~mem11;main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 428#L29-2 main_#t~post10 := main_~i~0;main_~i~0 := main_#t~post10 - 1;havoc main_#t~post10; 429#L29-3 assume !(main_~i~0 >= 0); 430#L29-4 main_~j~0 := main_~MAX~0 - 1;main_~i~0 := 0; 439#L35-3 [2020-10-19 19:10:19,193 INFO L796 eck$LassoCheckResult]: Loop: 439#L35-3 assume !!(main_~i~0 < main_~MAX~0);call main_#t~mem14 := read~int(main_~#str1~0.base, main_~#str1~0.offset + main_~i~0, 1);call main_#t~mem15 := read~int(main_~#str2~0.base, main_~#str2~0.offset + main_~j~0, 1);__VERIFIER_assert_#in~cond := (if main_#t~mem14 == main_#t~mem15 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 434#L7 assume !(0 == __VERIFIER_assert_~cond); 431#L7-2 havoc main_#t~mem15;havoc main_#t~mem14;main_#t~post16 := main_~j~0;main_~j~0 := main_#t~post16 - 1;havoc main_#t~post16; 432#L35-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 439#L35-3 [2020-10-19 19:10:19,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:19,194 INFO L82 PathProgramCache]: Analyzing trace with hash -357814151, now seen corresponding path program 1 times [2020-10-19 19:10:19,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:19,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154140378] [2020-10-19 19:10:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,228 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:19,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2317836, now seen corresponding path program 2 times [2020-10-19 19:10:19,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:19,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360795718] [2020-10-19 19:10:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:19,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:19,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1607635588, now seen corresponding path program 1 times [2020-10-19 19:10:19,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:10:19,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627643055] [2020-10-19 19:10:19,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:10:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:10:19,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:10:19,286 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:10:20,144 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 133 [2020-10-19 19:10:20,656 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 99 [2020-10-19 19:10:20,668 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:10:20,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:10:20,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:10:20,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:10:20,669 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:10:20,669 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:20,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:10:20,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:10:20,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: invert_string-1.c_Iteration5_Lasso [2020-10-19 19:10:20,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:10:20,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:10:20,675 INFO 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 19:10:20,677 INFO 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 19:10:20,678 INFO 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 19:10:20,681 INFO 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 19:10:20,684 INFO 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 19:10:20,686 INFO 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 19:10:20,688 INFO 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 19:10:20,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:20,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:10:20,701 INFO 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 19:10:20,702 INFO 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 19:10:20,705 INFO 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 19:10:20,708 INFO 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 19:10:20,718 INFO 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 19:10:21,089 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-10-19 19:10:21,140 INFO 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 19:10:21,143 INFO 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 19:10:21,149 INFO 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 19:10:21,154 INFO 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 19:10:21,621 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:10:21,621 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:10:21,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:21,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,681 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:10:21,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:21,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:21,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,739 INFO L522 LassoAnalysis]: Proving 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 19:10:21,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:21,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:21,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:21,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:21,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,797 INFO L522 LassoAnalysis]: Proving 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 19:10:21,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:21,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:21,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:21,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:21,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:21,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:10:21,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:21,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,913 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 19:10:21,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:21,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:21,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:21,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:21,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:21,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:21,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:21,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:21,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:21,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:21,996 INFO L522 LassoAnalysis]: Proving 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 19:10:22,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,027 INFO L522 LassoAnalysis]: Proving 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 19:10:22,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,063 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:10:22,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,096 INFO L522 LassoAnalysis]: Proving 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 19:10:22,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,128 INFO L522 LassoAnalysis]: Proving 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 19:10:22,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,156 INFO L522 LassoAnalysis]: Proving 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 19:10:22,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,185 INFO L522 LassoAnalysis]: Proving 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 19:10:22,209 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 19:10:22,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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 19:10:22,237 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 19:10:22,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:10:22,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:10:22,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:10:22,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:10:22,271 INFO L522 LassoAnalysis]: Proving 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 19:10:22,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,301 INFO L522 LassoAnalysis]: Proving 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 19:10:22,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,328 INFO L522 LassoAnalysis]: Proving 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 19:10:22,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 19:10:22,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:10:22,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:10:22,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:10:22,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:10:22,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:10:22,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:10:22,372 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:10:22,381 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 19:10:22,381 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 1 variables to zero. 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 19:10:22,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:10:22,385 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:10:22,385 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:10:22,386 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#str2~0.offset, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~#str2~0.offset + 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2020-10-19 19:10:22,472 INFO L297 tatePredicateManager]: 17 out of 17 supporting invariants were superfluous and have been removed [2020-10-19 19:10:22,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:10:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:22,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:10:22,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:10:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:10:22,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:10:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:10:22,561 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 19:10:22,561 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 19:10:22,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 19:10:22,576 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 21 states and 24 transitions. Complement of second has 6 states. [2020-10-19 19:10:22,580 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 19:10:22,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:10:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-10-19 19:10:22,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2020-10-19 19:10:22,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:22,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 4 letters. [2020-10-19 19:10:22,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:22,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 12 letters. Loop has 8 letters. [2020-10-19 19:10:22,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:10:22,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2020-10-19 19:10:22,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:10:22,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-10-19 19:10:22,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:10:22,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:10:22,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:10:22,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:10:22,585 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:10:22,586 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:10:22,587 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:10:22,587 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 19:10:22,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:10:22,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:10:22,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:10:22,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:10:22 BoogieIcfgContainer [2020-10-19 19:10:22,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:10:22,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:10:22,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:10:22,596 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:10:22,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:10:11" (3/4) ... [2020-10-19 19:10:22,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:10:22,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:10:22,608 INFO L168 Benchmark]: Toolchain (without parser) took 11848.69 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:10:22,611 INFO L168 Benchmark]: CDTParser took 0.26 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 19:10:22,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.23 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:10:22,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:10:22,613 INFO L168 Benchmark]: Boogie Preprocessor took 28.88 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:10:22,613 INFO L168 Benchmark]: RCFGBuilder took 319.99 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:10:22,614 INFO L168 Benchmark]: BuchiAutomizer took 11050.75 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -44.9 MB). Peak memory consumption was 143.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:10:22,614 INFO L168 Benchmark]: Witness Printer took 6.20 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:10:22,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 336.23 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.88 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 319.99 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 11050.75 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -44.9 MB). Peak memory consumption was 143.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.20 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[str1] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[str1] + 2 * i and consists of 4 locations. One deterministic module has affine ranking function 2 * str2 + 2 * j + 1 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 10.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 42 SDtfs, 63 SDslu, 10 SDs, 0 SdLazy, 54 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital272 mio100 ax100 hnf99 lsp93 ukn51 mio100 lsp51 div128 bol100 ite100 ukn100 eq161 hnf80 smp89 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...