./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.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-industry-pattern/array_shadowinit.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 347059d6406aa1ba26314e4f378fb38f7ea56c61 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:52:02,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:52:02,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:52:02,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:52:02,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:52:02,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:52:02,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:52:02,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:52:02,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:52:02,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:52:02,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:52:02,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:52:02,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:52:02,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:52:02,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:52:02,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:52:02,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:52:02,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:52:02,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:52:02,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:52:02,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:52:02,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:52:02,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:52:02,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:52:02,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:52:02,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:52:02,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:52:02,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:52:02,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:52:02,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:52:02,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:52:02,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:52:02,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:52:02,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:52:02,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:52:02,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:52:02,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:52:02,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:52:02,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:52:02,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:52:02,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:52:02,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 18:52:02,730 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:52:02,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:52:02,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:52:02,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:52:02,734 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:52:02,734 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:52:02,735 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:52:02,735 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:52:02,735 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:52:02,736 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:52:02,737 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:52:02,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:52:02,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:52:02,738 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:52:02,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:52:02,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:52:02,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:52:02,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:52:02,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:52:02,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:52:02,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:52:02,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:52:02,741 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:52:02,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:52:02,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:52:02,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:52:02,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:52:02,742 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:52:02,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:52:02,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:52:02,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:52:02,744 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:52:02,745 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:52:02,746 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 -> 347059d6406aa1ba26314e4f378fb38f7ea56c61 [2020-10-19 18:52:03,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:52:03,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:52:03,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:52:03,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:52:03,115 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:52:03,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2020-10-19 18:52:03,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d53e90c4/b9ca96d1a382482bb3813add34b72591/FLAG9ccfca0d5 [2020-10-19 18:52:03,655 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:52:03,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2020-10-19 18:52:03,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d53e90c4/b9ca96d1a382482bb3813add34b72591/FLAG9ccfca0d5 [2020-10-19 18:52:04,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d53e90c4/b9ca96d1a382482bb3813add34b72591 [2020-10-19 18:52:04,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:52:04,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:52:04,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:52:04,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:52:04,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:52:04,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d33d885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04, skipping insertion in model container [2020-10-19 18:52:04,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:52:04,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:52:04,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:52:04,307 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:52:04,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:52:04,347 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:52:04,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04 WrapperNode [2020-10-19 18:52:04,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:52:04,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:52:04,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:52:04,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:52:04,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:52:04,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:52:04,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:52:04,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:52:04,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (1/1) ... [2020-10-19 18:52:04,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:52:04,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:52:04,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:52:04,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:52:04,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (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 18:52:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:52:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:52:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:52:04,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:52:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:52:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:52:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:52:04,778 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:52:04,778 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-19 18:52:04,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:52:04 BoogieIcfgContainer [2020-10-19 18:52:04,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:52:04,781 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:52:04,782 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:52:04,785 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:52:04,787 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:52:04,787 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:52:04" (1/3) ... [2020-10-19 18:52:04,788 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d383bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:52:04, skipping insertion in model container [2020-10-19 18:52:04,788 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:52:04,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:52:04" (2/3) ... [2020-10-19 18:52:04,789 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d383bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:52:04, skipping insertion in model container [2020-10-19 18:52:04,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:52:04,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:52:04" (3/3) ... [2020-10-19 18:52:04,792 INFO L373 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2020-10-19 18:52:04,856 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:52:04,856 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:52:04,856 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:52:04,857 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:52:04,857 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:52:04,857 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:52:04,858 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:52:04,858 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:52:04,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-19 18:52:04,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 18:52:04,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:52:04,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:52:04,913 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 18:52:04,913 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:52:04,913 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:52:04,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-19 18:52:04,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 18:52:04,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:52:04,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:52:04,916 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 18:52:04,916 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:52:04,926 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L18true assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 11#L23-2true [2020-10-19 18:52:04,927 INFO L796 eck$LassoCheckResult]: Loop: 11#L23-2true assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 11#L23-2true [2020-10-19 18:52:04,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:04,934 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-10-19 18:52:04,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:04,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242901537] [2020-10-19 18:52:04,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:05,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:05,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:05,119 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:05,121 INFO L82 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2020-10-19 18:52:05,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:05,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51831883] [2020-10-19 18:52:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:05,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:05,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:05,142 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:05,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:05,145 INFO L82 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2020-10-19 18:52:05,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:05,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617643281] [2020-10-19 18:52:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:05,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:05,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:05,210 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:05,527 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-19 18:52:05,640 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:52:05,641 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:52:05,641 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:52:05,641 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:52:05,641 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:52:05,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:05,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:52:05,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:52:05,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2020-10-19 18:52:05,642 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:52:05,643 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:52:05,666 INFO 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 18:52:05,844 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-19 18:52:05,890 INFO 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 18:52:05,895 INFO 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 18:52:05,898 INFO 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 18:52:05,901 INFO 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 18:52:05,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:52:05,911 INFO 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 18:52:06,225 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:52:06,232 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 18:52:06,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:06,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,336 INFO L522 LassoAnalysis]: Proving 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 18:52:06,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,391 INFO L402 nArgumentSynthesizer]: A total of 2 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 18:52:06,396 INFO L522 LassoAnalysis]: Proving 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 18:52:06,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:52:06,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,457 INFO L522 LassoAnalysis]: Proving 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 18:52:06,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:52:06,509 INFO L522 LassoAnalysis]: Proving 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 18:52:06,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:52:06,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:52:06,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:06,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:06,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,675 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:52:06,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:52:06,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:06,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:52:06,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:06,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:06,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:06,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:06,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:06,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:06,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:06,889 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 18:52:06,902 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:52:06,923 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 18:52:06,923 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:06,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:52:06,940 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:52:06,941 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:52:06,942 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_main_~i~0) = 1*~N~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-19 18:52:07,071 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2020-10-19 18:52:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:52:07,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:52:07,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:52:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:52:07,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:52:07,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:52:07,151 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 18:52:07,174 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-19 18:52:07,176 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 2 states. [2020-10-19 18:52:07,223 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 2 states. Result 34 states and 45 transitions. Complement of second has 6 states. [2020-10-19 18:52:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:52:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:52:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-19 18:52:07,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-19 18:52:07,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:52:07,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-19 18:52:07,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:52:07,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-19 18:52:07,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:52:07,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2020-10-19 18:52:07,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-19 18:52:07,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 12 states and 16 transitions. [2020-10-19 18:52:07,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:52:07,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:52:07,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-10-19 18:52:07,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:52:07,243 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 18:52:07,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-10-19 18:52:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 18:52:07,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:52:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-10-19 18:52:07,275 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 18:52:07,276 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 18:52:07,276 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:52:07,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-10-19 18:52:07,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-19 18:52:07,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:52:07,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:52:07,277 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:52:07,277 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:52:07,278 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 114#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 115#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 119#L23-2 assume !(main_~i~0 < ~N~0); 120#L23-3 main_~i~0 := 0; 117#L29-2 [2020-10-19 18:52:07,278 INFO L796 eck$LassoCheckResult]: Loop: 117#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 123#L13 assume !(0 == __VERIFIER_assert_~cond); 116#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 117#L29-2 [2020-10-19 18:52:07,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2020-10-19 18:52:07,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:07,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491573061] [2020-10-19 18:52:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:52:07,336 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 18:52:07,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491573061] [2020-10-19 18:52:07,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:52:07,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:52:07,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363640199] [2020-10-19 18:52:07,341 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:52:07,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:07,342 INFO L82 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 1 times [2020-10-19 18:52:07,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:07,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634851112] [2020-10-19 18:52:07,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,362 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:07,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:52:07,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:52:07,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:52:07,459 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-10-19 18:52:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:52:07,480 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-10-19 18:52:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:52:07,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2020-10-19 18:52:07,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:52:07,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 10 transitions. [2020-10-19 18:52:07,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-19 18:52:07,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-19 18:52:07,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2020-10-19 18:52:07,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:52:07,484 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-19 18:52:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2020-10-19 18:52:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-19 18:52:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-19 18:52:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-10-19 18:52:07,486 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-19 18:52:07,487 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-19 18:52:07,487 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:52:07,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2020-10-19 18:52:07,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:52:07,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:52:07,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:52:07,488 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:52:07,488 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:52:07,489 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 143#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 144#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 147#L23-2 assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 148#L23-2 assume !(main_~i~0 < ~N~0); 149#L23-3 main_~i~0 := 0; 146#L29-2 [2020-10-19 18:52:07,489 INFO L796 eck$LassoCheckResult]: Loop: 146#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 151#L13 assume !(0 == __VERIFIER_assert_~cond); 145#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 146#L29-2 [2020-10-19 18:52:07,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:07,489 INFO L82 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2020-10-19 18:52:07,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:07,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848882083] [2020-10-19 18:52:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,535 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:07,537 INFO L82 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 2 times [2020-10-19 18:52:07,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:07,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738311923] [2020-10-19 18:52:07,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:07,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:07,558 INFO L82 PathProgramCache]: Analyzing trace with hash -450855157, now seen corresponding path program 1 times [2020-10-19 18:52:07,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:52:07,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103856542] [2020-10-19 18:52:07,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:52:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:52:07,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:52:07,650 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:52:08,095 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-19 18:52:08,197 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:52:08,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:52:08,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:52:08,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:52:08,198 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:52:08,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:08,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:52:08,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:52:08,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2020-10-19 18:52:08,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:52:08,198 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:52:08,202 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 18:52:08,205 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 18:52:08,207 INFO 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 18:52:08,211 INFO 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 18:52:08,216 INFO 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 18:52:08,390 INFO 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 18:52:08,394 INFO 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 18:52:08,397 INFO 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 18:52:08,400 INFO 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 18:52:08,661 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:52:08,661 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:08,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:08,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:08,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:52:08,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:08,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:08,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:08,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:52:08,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:52:08,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:08,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:08,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:08,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:52:08,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:08,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:08,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:08,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:52:08,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:52:08,717 INFO L522 LassoAnalysis]: Proving 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 18:52:08,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:52:08,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:08,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:08,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:08,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:08,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:08,770 INFO L402 nArgumentSynthesizer]: A total of 2 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 18:52:08,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:08,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:08,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:08,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:52:08,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:08,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:08,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:08,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:52:08,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:08,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:08,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:08,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:08,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:08,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:08,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:08,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:08,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:08,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:08,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 18:52:08,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:52:08,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:52:08,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:52:08,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:52:08,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:52:08,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:08,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:52:08,990 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-19 18:52:08,990 INFO L444 ModelExtractionUtils]: 11 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:52:09,010 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:52:09,014 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:52:09,014 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:52:09,014 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ~N~0) = -1*ULTIMATE.start_main_~i~0 + 1*~N~0 Supporting invariants [] [2020-10-19 18:52:09,077 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-10-19 18:52:09,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:52:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:52:09,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:52:09,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:52:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:52:09,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:52:09,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:52:09,135 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 18:52:09,136 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 18:52:09,136 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-19 18:52:09,148 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 12 states and 14 transitions. Complement of second has 4 states. [2020-10-19 18:52:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:52:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:52:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-10-19 18:52:09,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-19 18:52:09,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:52:09,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-19 18:52:09,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:52:09,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2020-10-19 18:52:09,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:52:09,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2020-10-19 18:52:09,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:52:09,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-10-19 18:52:09,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:52:09,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:52:09,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:52:09,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:52:09,154 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:52:09,154 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:52:09,154 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:52:09,154 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:52:09,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:52:09,155 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:52:09,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:52:09,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:52:09 BoogieIcfgContainer [2020-10-19 18:52:09,161 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:52:09,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:52:09,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:52:09,162 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:52:09,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:52:04" (3/4) ... [2020-10-19 18:52:09,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:52:09,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:52:09,168 INFO L168 Benchmark]: Toolchain (without parser) took 5131.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 960.0 MB in the beginning and 992.7 MB in the end (delta: -32.7 MB). Peak memory consumption was 147.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:52:09,168 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:52:09,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.95 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:52:09,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:52:09,171 INFO L168 Benchmark]: Boogie Preprocessor took 37.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:52:09,172 INFO L168 Benchmark]: RCFGBuilder took 285.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:52:09,173 INFO L168 Benchmark]: BuchiAutomizer took 4379.65 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 90.2 MB). Free memory was 1.1 GB in the beginning and 992.7 MB in the end (delta: 65.3 MB). Peak memory consumption was 155.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:52:09,173 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 1.2 GB. Free memory is still 992.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:52:09,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.95 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 285.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4379.65 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 90.2 MB). Free memory was 1.1 GB in the beginning and 992.7 MB in the end (delta: 65.3 MB). Peak memory consumption was 155.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.53 ms. Allocated memory is still 1.2 GB. Free memory is still 992.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * i + N and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital174 mio100 ax100 hnf99 lsp92 ukn59 mio100 lsp57 div100 bol100 ite100 ukn100 eq163 hnf90 smp97 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...