./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5bb49c482aaa1a2241193483b61f4d87bfc9c366 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:39:32,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:39:32,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:39:32,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:39:32,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:39:32,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:39:32,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:39:32,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:39:32,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:39:32,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:39:32,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:39:32,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:39:32,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:39:32,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:39:32,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:39:32,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:39:32,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:39:32,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:39:32,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:39:32,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:39:32,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:39:32,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:39:32,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:39:32,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:39:32,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:39:32,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:39:32,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:39:32,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:39:32,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:39:32,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:39:32,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:39:32,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:39:32,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:39:32,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:39:32,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:39:32,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:39:32,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:39:32,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:39:32,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:39:32,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:39:32,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:39:32,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:39:32,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:39:32,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:39:32,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:39:32,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:39:32,404 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:39:32,404 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:39:32,404 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:39:32,412 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:39:32,412 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:39:32,412 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:39:32,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:39:32,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:39:32,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:39:32,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:39:32,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:39:32,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:39:32,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:39:32,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:39:32,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:39:32,416 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:39:32,416 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:39:32,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:39:32,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:39:32,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:39:32,417 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:39:32,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:39:32,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:39:32,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:39:32,418 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:39:32,420 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:39:32,420 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb49c482aaa1a2241193483b61f4d87bfc9c366 [2020-10-20 06:39:32,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:39:32,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:39:32,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:39:32,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:39:32,652 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:39:32,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i [2020-10-20 06:39:32,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25618526e/d323d25b9fee45698cdb9210e01d34ab/FLAG82c758cc0 [2020-10-20 06:39:33,318 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:39:33,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i [2020-10-20 06:39:33,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25618526e/d323d25b9fee45698cdb9210e01d34ab/FLAG82c758cc0 [2020-10-20 06:39:33,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25618526e/d323d25b9fee45698cdb9210e01d34ab [2020-10-20 06:39:33,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:39:33,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:39:33,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:39:33,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:39:33,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:39:33,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:39:33" (1/1) ... [2020-10-20 06:39:33,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5b892c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:33, skipping insertion in model container [2020-10-20 06:39:33,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:39:33" (1/1) ... [2020-10-20 06:39:33,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:39:33,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:39:34,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:39:34,161 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:39:34,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:39:34,266 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:39:34,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34 WrapperNode [2020-10-20 06:39:34,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:39:34,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:39:34,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:39:34,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:39:34,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:39:34,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:39:34,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:39:34,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:39:34,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... [2020-10-20 06:39:34,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:39:34,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:39:34,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:39:34,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:39:34,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:34,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:39:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:39:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:39:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:39:34,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:39:34,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:39:34,693 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:39:34,693 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-20 06:39:34,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:39:34 BoogieIcfgContainer [2020-10-20 06:39:34,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:39:34,696 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:39:34,696 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:39:34,700 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:39:34,712 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:39:34,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:39:33" (1/3) ... [2020-10-20 06:39:34,714 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7937889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:39:34, skipping insertion in model container [2020-10-20 06:39:34,714 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:39:34,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:34" (2/3) ... [2020-10-20 06:39:34,715 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7937889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:39:34, skipping insertion in model container [2020-10-20 06:39:34,715 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:39:34,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:39:34" (3/3) ... [2020-10-20 06:39:34,718 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrchr-alloca-1.i [2020-10-20 06:39:34,767 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:39:34,767 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:39:34,768 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:39:34,768 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:39:34,768 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:39:34,768 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:39:34,769 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:39:34,769 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:39:34,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-20 06:39:34,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:34,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:34,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:34,812 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:39:34,812 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:39:34,812 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:39:34,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-10-20 06:39:34,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:34,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:34,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:34,815 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:39:34,815 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:39:34,822 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8; 6#L555true assume !(main_~length~0 < 1); 10#L555-2true call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet10;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset, cstrchr_#t~mem2, cstrchr_#t~mem3, cstrchr_#t~short4, cstrchr_#t~mem6, cstrchr_#t~ite7.base, cstrchr_#t~ite7.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 7#L549-5true [2020-10-20 06:39:34,822 INFO L796 eck$LassoCheckResult]: Loop: 7#L549-5true call cstrchr_#t~mem2 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := 0 != cstrchr_#t~mem2; 3#L549-1true assume cstrchr_#t~short4;call cstrchr_#t~mem3 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := cstrchr_#t~mem3 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 5#L549-3true assume !!cstrchr_#t~short4;havoc cstrchr_#t~mem2;havoc cstrchr_#t~mem3;havoc cstrchr_#t~short4;cstrchr_#t~post5.base, cstrchr_#t~post5.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post5.base, 1 + cstrchr_#t~post5.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset; 7#L549-5true [2020-10-20 06:39:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:34,827 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-20 06:39:34,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:34,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351394140] [2020-10-20 06:39:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:34,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:34,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:34,985 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:34,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:34,986 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2020-10-20 06:39:34,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:34,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177622038] [2020-10-20 06:39:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:35,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:35,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:35,024 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:35,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:35,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2020-10-20 06:39:35,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:35,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857504475] [2020-10-20 06:39:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:35,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:35,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:35,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:35,343 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-10-20 06:39:35,573 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-20 06:39:35,664 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:39:35,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:39:35,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:39:35,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:39:35,665 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:39:35,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:35,666 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:39:35,666 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:39:35,666 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrchr-alloca-1.i_Iteration1_Lasso [2020-10-20 06:39:35,666 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:39:35,666 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:39:35,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:35,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:36,566 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-20 06:39:36,698 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:39:36,705 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:36,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:36,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:36,809 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:36,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:36,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:36,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:36,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:36,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:36,951 INFO L522 LassoAnalysis]: Proving 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) [2020-10-20 06:39:36,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:36,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:36,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:36,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:36,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:36,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:36,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:36,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:37,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:37,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:37,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,154 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 [2020-10-20 06:39:37,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:37,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:37,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:37,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:37,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:37,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:37,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,239 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,262 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,303 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-10-20 06:39:37,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,416 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2020-10-20 06:39:37,417 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-10-20 06:39:37,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,662 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:37,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:37,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:37,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:37,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:37,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:37,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:37,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:39:37,760 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-10-20 06:39:37,761 INFO L444 ModelExtractionUtils]: 15 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:37,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:37,789 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:39:37,790 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:39:37,791 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1 Supporting invariants [] [2020-10-20 06:39:37,848 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-10-20 06:39:37,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:39:37,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:37,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:39:37,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:39:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:37,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:39:37,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:39:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:39:38,006 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:39:38,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2020-10-20 06:39:38,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 5 states. [2020-10-20 06:39:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:39:38,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:39:38,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 06:39:38,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-20 06:39:38,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:38,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-20 06:39:38,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:38,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2020-10-20 06:39:38,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:38,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2020-10-20 06:39:38,070 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:39:38,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-10-20 06:39:38,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:39:38,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:39:38,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:39:38,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:39:38,074 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:39:38,074 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:39:38,074 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:39:38,074 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:39:38,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:39:38,074 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:39:38,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:39:38,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:39:38 BoogieIcfgContainer [2020-10-20 06:39:38,080 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:39:38,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:39:38,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:39:38,080 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:39:38,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:39:34" (3/4) ... [2020-10-20 06:39:38,085 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:39:38,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:39:38,087 INFO L168 Benchmark]: Toolchain (without parser) took 4410.61 ms. Allocated memory was 38.3 MB in the beginning and 62.9 MB in the end (delta: 24.6 MB). Free memory was 11.8 MB in the beginning and 30.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,088 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 17.0 MB in the beginning and 17.0 MB in the end (delta: 48.5 kB). Peak memory consumption was 48.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.60 ms. Allocated memory was 38.3 MB in the beginning and 45.6 MB in the end (delta: 7.3 MB). Free memory was 10.9 MB in the beginning and 18.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.05 ms. Allocated memory is still 45.6 MB. Free memory was 18.7 MB in the beginning and 16.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,090 INFO L168 Benchmark]: Boogie Preprocessor took 54.69 ms. Allocated memory is still 45.6 MB. Free memory was 16.7 MB in the beginning and 27.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,091 INFO L168 Benchmark]: RCFGBuilder took 325.16 ms. Allocated memory is still 45.6 MB. Free memory was 27.8 MB in the beginning and 12.8 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,092 INFO L168 Benchmark]: BuchiAutomizer took 3383.51 ms. Allocated memory was 45.6 MB in the beginning and 62.9 MB in the end (delta: 17.3 MB). Free memory was 12.6 MB in the beginning and 31.2 MB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:39:38,093 INFO L168 Benchmark]: Witness Printer took 5.06 ms. Allocated memory is still 62.9 MB. Free memory was 31.2 MB in the beginning and 30.6 MB in the end (delta: 610.9 kB). Peak memory consumption was 610.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:39:38,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 17.0 MB in the beginning and 17.0 MB in the end (delta: 48.5 kB). Peak memory consumption was 48.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 584.60 ms. Allocated memory was 38.3 MB in the beginning and 45.6 MB in the end (delta: 7.3 MB). Free memory was 10.9 MB in the beginning and 18.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 47.05 ms. Allocated memory is still 45.6 MB. Free memory was 18.7 MB in the beginning and 16.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 54.69 ms. Allocated memory is still 45.6 MB. Free memory was 16.7 MB in the beginning and 27.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 325.16 ms. Allocated memory is still 45.6 MB. Free memory was 27.8 MB in the beginning and 12.8 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3383.51 ms. Allocated memory was 45.6 MB in the beginning and 62.9 MB in the end (delta: 17.3 MB). Free memory was 12.6 MB in the beginning and 31.2 MB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.06 ms. Allocated memory is still 62.9 MB. Free memory was 31.2 MB in the beginning and 30.6 MB in the end (delta: 610.9 kB). Peak memory consumption was 610.9 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 25 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital148 mio100 ax112 hnf98 lsp85 ukn87 mio100 lsp34 div164 bol100 ite100 ukn100 eq155 hnf66 smp100 dnf873 smp27 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 273ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...