./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20f541ceeb4d88c1ded29d751212bcde5b7dc0f0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 20:26:25,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:26:25,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:26:25,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:26:25,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:26:25,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:26:25,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:26:25,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:26:25,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:26:25,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:26:25,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:26:25,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:26:25,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:26:25,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:26:25,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:26:25,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:26:25,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:26:25,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:26:25,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:26:25,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:26:25,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:26:25,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:26:25,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:26:25,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:26:25,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:26:25,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:26:25,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:26:25,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:26:25,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:26:25,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:26:25,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:26:25,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:26:25,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:26:25,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:26:25,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:26:25,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:26:25,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:26:25,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:26:25,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:26:25,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:26:25,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:26:25,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:26:25,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:26:25,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:26:25,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:26:25,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:26:25,794 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:26:25,794 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:26:25,794 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:26:25,795 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:26:25,795 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:26:25,795 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:26:25,795 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:26:25,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:26:25,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:26:25,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:26:25,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:26:25,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:26:25,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:26:25,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:26:25,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:26:25,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:26:25,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:26:25,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:26:25,798 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:26:25,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:26:25,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:26:25,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:26:25,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:26:25,799 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:26:25,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:26:25,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:26:25,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:26:25,800 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:26:25,801 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:26:25,801 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 -> 20f541ceeb4d88c1ded29d751212bcde5b7dc0f0 [2020-10-19 20:26:26,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:26:26,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:26:26,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:26:26,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:26:26,146 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:26:26,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2020-10-19 20:26:26,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad80c8fe/dd2a29c28de646a18352961e83392b7c/FLAG672a0500e [2020-10-19 20:26:26,650 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:26:26,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2020-10-19 20:26:26,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad80c8fe/dd2a29c28de646a18352961e83392b7c/FLAG672a0500e [2020-10-19 20:26:27,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad80c8fe/dd2a29c28de646a18352961e83392b7c [2020-10-19 20:26:27,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:26:27,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:26:27,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:26:27,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:26:27,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:26:27,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e92c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27, skipping insertion in model container [2020-10-19 20:26:27,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:26:27,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:26:27,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:26:27,530 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:26:27,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:26:27,622 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:26:27,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27 WrapperNode [2020-10-19 20:26:27,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:26:27,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:26:27,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:26:27,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:26:27,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:26:27,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:26:27,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:26:27,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:26:27,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... [2020-10-19 20:26:27,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:26:27,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:26:27,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:26:27,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:26:27,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 20:26:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 20:26:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:26:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 20:26:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:26:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:26:28,154 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:26:28,155 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 20:26:28,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:26:28 BoogieIcfgContainer [2020-10-19 20:26:28,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:26:28,157 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:26:28,158 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:26:28,162 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:26:28,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:26:28,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:26:27" (1/3) ... [2020-10-19 20:26:28,165 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@252d237d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:26:28, skipping insertion in model container [2020-10-19 20:26:28,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:26:28,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:26:27" (2/3) ... [2020-10-19 20:26:28,166 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@252d237d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:26:28, skipping insertion in model container [2020-10-19 20:26:28,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:26:28,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:26:28" (3/3) ... [2020-10-19 20:26:28,168 INFO L373 chiAutomizerObserver]: Analyzing ICFG subseq-alloca-2.i [2020-10-19 20:26:28,220 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:26:28,220 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:26:28,220 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:26:28,221 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:26:28,221 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:26:28,221 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:26:28,221 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:26:28,221 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:26:28,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-10-19 20:26:28,270 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-19 20:26:28,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:28,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:28,279 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:26:28,279 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:26:28,279 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:26:28,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-10-19 20:26:28,282 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-19 20:26:28,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:28,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:28,283 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:26:28,283 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:26:28,292 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 18#L530true assume !(main_~length1~0 < 1); 21#L530-2true assume !(main_~length2~0 < 1); 13#L533-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 5#L539-3true [2020-10-19 20:26:28,292 INFO L796 eck$LassoCheckResult]: Loop: 5#L539-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 3#L539-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 5#L539-3true [2020-10-19 20:26:28,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:28,300 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-19 20:26:28,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:28,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895099009] [2020-10-19 20:26:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:28,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:28,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:28,465 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:28,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:28,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-10-19 20:26:28,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:28,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495596371] [2020-10-19 20:26:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:28,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:28,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:28,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:28,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-10-19 20:26:28,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:28,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103904262] [2020-10-19 20:26:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:28,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:28,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:28,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:28,770 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-19 20:26:28,862 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:26:28,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:26:28,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:26:28,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:26:28,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:26:28,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:28,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:26:28,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:26:28,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration1_Lasso [2020-10-19 20:26:28,866 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:26:28,866 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:26:28,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:28,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:29,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:29,465 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:26:29,470 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:29,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:29,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:29,491 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:29,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:29,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:29,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:29,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:29,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:29,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:29,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:29,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:29,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,674 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 20:26:29,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:29,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:29,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:29,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:29,728 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 20:26:29,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:29,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:29,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:29,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:29,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:29,829 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 20:26:29,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:29,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:29,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:29,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:29,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:29,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:29,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:29,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:29,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:29,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:29,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:29,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:29,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:29,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:29,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:29,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:29,973 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 20:26:30,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:30,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:30,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:30,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:30,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:30,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:30,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:30,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:30,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:30,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:30,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:30,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:30,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:30,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:30,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,089 INFO L522 LassoAnalysis]: Proving 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 20:26:30,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:30,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:30,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:30,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:30,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:30,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:30,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,149 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 20:26:30,195 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 [2020-10-19 20:26:30,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:30,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:30,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:30,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:30,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:30,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,206 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:30,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:30,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:30,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:30,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:30,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:30,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:30,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:30,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,294 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 20:26:30,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:30,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:30,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:30,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:30,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:30,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:30,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:26:30,336 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 20:26:30,336 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. 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) [2020-10-19 20:26:30,350 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:30,353 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:26:30,354 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:26:30,355 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-19 20:26:30,415 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-19 20:26:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:30,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:26:30,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:30,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:26:30,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:30,527 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:26:30,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2020-10-19 20:26:30,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 54 states and 79 transitions. Complement of second has 7 states. [2020-10-19 20:26:30,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:26:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:26:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-10-19 20:26:30,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 20:26:30,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:30,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 20:26:30,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:30,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 20:26:30,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:30,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 79 transitions. [2020-10-19 20:26:30,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 20:26:30,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 17 states and 24 transitions. [2020-10-19 20:26:30,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-19 20:26:30,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-19 20:26:30,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2020-10-19 20:26:30,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:30,614 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-19 20:26:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2020-10-19 20:26:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-19 20:26:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 20:26:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2020-10-19 20:26:30,645 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-19 20:26:30,645 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-19 20:26:30,645 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:26:30,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2020-10-19 20:26:30,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 20:26:30,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:30,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:30,647 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:30,647 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:26:30,648 INFO L794 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 158#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 159#L530 assume !(main_~length1~0 < 1); 163#L530-2 assume !(main_~length2~0 < 1); 160#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 152#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 153#L539-4 main_~i~1 := 0; 154#L545-3 [2020-10-19 20:26:30,648 INFO L796 eck$LassoCheckResult]: Loop: 154#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 157#L545-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 154#L545-3 [2020-10-19 20:26:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:30,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-10-19 20:26:30,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:30,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573098304] [2020-10-19 20:26:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:30,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:30,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:30,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:30,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-10-19 20:26:30,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:30,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464322892] [2020-10-19 20:26:30,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:30,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:30,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:30,690 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:30,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:30,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2020-10-19 20:26:30,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:30,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694108401] [2020-10-19 20:26:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:30,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:30,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:30,724 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:30,955 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-19 20:26:31,026 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:26:31,027 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:26:31,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:26:31,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:26:31,027 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:26:31,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:31,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:26:31,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:26:31,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration2_Lasso [2020-10-19 20:26:31,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:26:31,028 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:26:31,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,039 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 20:26:31,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:31,476 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:26:31,476 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:31,489 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 20:26:31,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:31,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:31,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:31,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:31,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:31,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:31,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:31,495 INFO L522 LassoAnalysis]: Proving 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 20:26:31,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:31,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:31,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:31,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:31,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:31,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:31,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:31,535 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:31,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:31,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:31,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:31,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:31,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:31,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:31,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:31,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:26:31,713 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-10-19 20:26:31,713 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:31,724 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:31,730 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 20:26:31,731 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:26:31,731 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2020-10-19 20:26:31,772 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2020-10-19 20:26:31,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:26:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:31,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 20:26:31,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:31,852 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 20:26:31,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:31,869 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-19 20:26:31,870 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-10-19 20:26:31,948 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 25 states and 38 transitions. Complement of second has 7 states. [2020-10-19 20:26:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:26:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 20:26:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-10-19 20:26:31,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 20:26:31,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:31,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 20:26:31,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:31,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-19 20:26:31,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:31,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 38 transitions. [2020-10-19 20:26:31,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 20:26:31,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 18 states and 26 transitions. [2020-10-19 20:26:31,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-19 20:26:31,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-19 20:26:31,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-10-19 20:26:31,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:31,956 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-19 20:26:31,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-10-19 20:26:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 20:26:31,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 20:26:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2020-10-19 20:26:31,958 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-19 20:26:31,958 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-19 20:26:31,958 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:26:31,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2020-10-19 20:26:31,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 20:26:31,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:31,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:31,960 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:31,960 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 20:26:31,960 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 286#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 287#L530 assume !(main_~length1~0 < 1); 291#L530-2 assume !(main_~length2~0 < 1); 288#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 279#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 280#L539-4 main_~i~1 := 0; 281#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 289#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 282#L518-5 [2020-10-19 20:26:31,960 INFO L796 eck$LassoCheckResult]: Loop: 282#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 283#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 277#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 278#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem6;havoc subseq_#t~mem5; 292#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 282#L518-5 [2020-10-19 20:26:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:31,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2020-10-19 20:26:31,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:31,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207488216] [2020-10-19 20:26:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:31,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:31,995 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,000 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,000 INFO L82 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 1 times [2020-10-19 20:26:32,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235863551] [2020-10-19 20:26:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,016 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1034036476, now seen corresponding path program 1 times [2020-10-19 20:26:32,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502142147] [2020-10-19 20:26:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:32,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502142147] [2020-10-19 20:26:32,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:26:32,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 20:26:32,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630801606] [2020-10-19 20:26:32,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:26:32,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 20:26:32,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 20:26:32,341 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 11 Second operand 7 states. [2020-10-19 20:26:32,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:26:32,463 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-10-19 20:26:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 20:26:32,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2020-10-19 20:26:32,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 20:26:32,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 25 transitions. [2020-10-19 20:26:32,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-19 20:26:32,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-19 20:26:32,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2020-10-19 20:26:32,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:32,467 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-10-19 20:26:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2020-10-19 20:26:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-19 20:26:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 20:26:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-10-19 20:26:32,470 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-19 20:26:32,470 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-19 20:26:32,470 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:26:32,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-10-19 20:26:32,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 20:26:32,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:32,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:32,472 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:32,472 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 20:26:32,472 INFO L794 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 350#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 351#L530 assume !(main_~length1~0 < 1); 355#L530-2 assume !(main_~length2~0 < 1); 352#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 343#L539-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 339#L539-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 340#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 344#L539-4 main_~i~1 := 0; 345#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 353#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 346#L518-5 [2020-10-19 20:26:32,472 INFO L796 eck$LassoCheckResult]: Loop: 346#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 347#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 341#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 342#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem6;havoc subseq_#t~mem5; 356#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 346#L518-5 [2020-10-19 20:26:32,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2020-10-19 20:26:32,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075210068] [2020-10-19 20:26:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,510 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,511 INFO L82 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 2 times [2020-10-19 20:26:32,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276878699] [2020-10-19 20:26:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,526 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:32,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1928298466, now seen corresponding path program 1 times [2020-10-19 20:26:32,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459962555] [2020-10-19 20:26:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:32,673 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 20:26:32,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459962555] [2020-10-19 20:26:32,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:26:32,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 20:26:32,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345895011] [2020-10-19 20:26:32,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:26:32,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 20:26:32,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-19 20:26:32,798 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 8 states. [2020-10-19 20:26:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:26:32,903 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-10-19 20:26:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 20:26:32,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2020-10-19 20:26:32,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 20:26:32,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 24 transitions. [2020-10-19 20:26:32,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-19 20:26:32,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-19 20:26:32,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-10-19 20:26:32,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:32,906 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 20:26:32,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-10-19 20:26:32,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-19 20:26:32,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 20:26:32,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-10-19 20:26:32,909 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-10-19 20:26:32,909 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-10-19 20:26:32,909 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 20:26:32,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2020-10-19 20:26:32,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 20:26:32,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:26:32,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:26:32,911 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:26:32,911 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 20:26:32,911 INFO L794 eck$LassoCheckResult]: Stem: 414#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 410#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 411#L530 assume !(main_~length1~0 < 1); 415#L530-2 assume !(main_~length2~0 < 1); 412#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 403#L539-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 399#L539-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 400#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 404#L539-4 main_~i~1 := 0; 405#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 408#L545-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 409#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 413#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 406#L518-5 [2020-10-19 20:26:32,911 INFO L796 eck$LassoCheckResult]: Loop: 406#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 407#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 401#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~mem2;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 402#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem6;havoc subseq_#t~mem5; 416#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 406#L518-5 [2020-10-19 20:26:32,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2020-10-19 20:26:32,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927642422] [2020-10-19 20:26:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,949 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:32,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 3 times [2020-10-19 20:26:32,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687537275] [2020-10-19 20:26:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:32,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:32,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:32,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1075475712, now seen corresponding path program 1 times [2020-10-19 20:26:32,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:26:32,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014054681] [2020-10-19 20:26:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:26:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:32,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:26:33,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:26:33,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:26:33,140 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-19 20:26:33,950 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 119 [2020-10-19 20:26:34,211 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-19 20:26:34,214 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:26:34,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:26:34,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:26:34,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:26:34,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:26:34,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:34,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:26:34,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:26:34,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration5_Lasso [2020-10-19 20:26:34,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:26:34,216 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:26:34,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:34,841 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2020-10-19 20:26:35,017 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-19 20:26:35,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:26:35,431 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-19 20:26:35,756 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-10-19 20:26:35,900 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-19 20:26:35,982 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:26:35,982 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:35,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:35,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:35,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:35,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:35,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:35,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:35,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:35,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:35,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 20:26:36,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,027 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:36,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,089 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:36,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,130 INFO L522 LassoAnalysis]: Proving 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 20:26:36,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,164 INFO L522 LassoAnalysis]: Proving 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 20:26:36,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,192 INFO L522 LassoAnalysis]: Proving 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 20:26:36,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:36,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,243 INFO L402 nArgumentSynthesizer]: A total of 0 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 20:26:36,247 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 20:26:36,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,276 INFO L522 LassoAnalysis]: Proving 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 20:26:36,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,334 INFO L522 LassoAnalysis]: Proving 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 20:26:36,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:36,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:26:36,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:26:36,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:26:36,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,469 INFO L522 LassoAnalysis]: Proving 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) [2020-10-19 20:26:36,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:26:36,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,566 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-10-19 20:26:36,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,651 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2020-10-19 20:26:36,651 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-10-19 20:26:36,769 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,797 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:36,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:26:36,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:26:36,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:26:36,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:26:36,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:26:36,952 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:26:36,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:26:36,983 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:26:37,081 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2020-10-19 20:26:37,081 INFO L444 ModelExtractionUtils]: 9 out of 61 variables were initially zero. Simplification set additionally 49 variables to zero. 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 20:26:37,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:26:37,094 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:26:37,094 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:26:37,094 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_subseq_~pt~0.base)_1, ULTIMATE.start_subseq_~pt~0.offset) = 1*v_rep(select #length ULTIMATE.start_subseq_~pt~0.base)_1 - 1*ULTIMATE.start_subseq_~pt~0.offset Supporting invariants [] [2020-10-19 20:26:37,238 INFO L297 tatePredicateManager]: 27 out of 27 supporting invariants were superfluous and have been removed [2020-10-19 20:26:37,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:26:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:26:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:37,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:26:37,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:26:37,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 20:26:37,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:26:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:26:37,318 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:26:37,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-19 20:26:37,342 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2020-10-19 20:26:37,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:26:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 20:26:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-10-19 20:26:37,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 5 letters. [2020-10-19 20:26:37,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:37,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 18 letters. Loop has 5 letters. [2020-10-19 20:26:37,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:37,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 10 letters. [2020-10-19 20:26:37,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:26:37,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-10-19 20:26:37,348 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:26:37,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-10-19 20:26:37,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:26:37,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:26:37,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:26:37,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:26:37,349 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:37,349 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:37,350 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:26:37,350 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 20:26:37,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:26:37,350 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:26:37,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:26:37,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:26:37 BoogieIcfgContainer [2020-10-19 20:26:37,359 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:26:37,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:26:37,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:26:37,362 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:26:37,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:26:28" (3/4) ... [2020-10-19 20:26:37,366 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:26:37,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:26:37,368 INFO L168 Benchmark]: Toolchain (without parser) took 10341.27 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.0 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -256.6 MB). Peak memory consumption was 67.4 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:37,370 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:37,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:37,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:37,380 INFO L168 Benchmark]: Boogie Preprocessor took 30.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:37,380 INFO L168 Benchmark]: RCFGBuilder took 453.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:37,381 INFO L168 Benchmark]: BuchiAutomizer took 9201.48 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -110.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 11.5 GB. [2020-10-19 20:26:37,384 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:26:37,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 586.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 453.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9201.48 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -110.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.05 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 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 length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[pt] + -1 * pt and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 8.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 85 SDtfs, 156 SDslu, 134 SDs, 0 SdLazy, 111 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital210 mio100 ax110 hnf98 lsp84 ukn74 mio100 lsp50 div100 bol100 ite100 ukn100 eq176 hnf90 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 204ms VariablesStem: 6 VariablesLoop: 3 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...