./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/terminator_02-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3dc5764de0a899142e3c264091a9582d1804fe6f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:04:31,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:04:31,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:04:31,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:04:31,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:04:31,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:04:31,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:04:31,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:04:31,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:04:31,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:04:31,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:04:31,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:04:31,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:04:31,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:04:31,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:04:31,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:04:31,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:04:31,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:04:31,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:04:31,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:04:31,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:04:31,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:04:31,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:04:31,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:04:31,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:04:31,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:04:31,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:04:31,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:04:31,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:04:31,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:04:31,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:04:31,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:04:31,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:04:31,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:04:31,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:04:31,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:04:31,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:04:31,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:04:31,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:04:31,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:04:31,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:04:31,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:04:31,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:04:31,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:04:31,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:04:31,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:04:31,176 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:04:31,176 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:04:31,177 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:04:31,177 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:04:31,177 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:04:31,177 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:04:31,178 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:04:31,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:04:31,179 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:04:31,179 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:04:31,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:04:31,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:04:31,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:04:31,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:04:31,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:04:31,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:04:31,181 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:04:31,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:04:31,182 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:04:31,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:04:31,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:04:31,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:04:31,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:04:31,184 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:04:31,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:04:31,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:04:31,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:04:31,185 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:04:31,186 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:04:31,186 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 -> 3dc5764de0a899142e3c264091a9582d1804fe6f [2020-10-20 07:04:31,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:04:31,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:04:31,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:04:31,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:04:31,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:04:31,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-1.c [2020-10-20 07:04:31,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884c2a044/4626f16c05374eb6a938009742b7ba60/FLAG6c0a7740a [2020-10-20 07:04:31,941 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:04:31,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c [2020-10-20 07:04:31,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884c2a044/4626f16c05374eb6a938009742b7ba60/FLAG6c0a7740a [2020-10-20 07:04:32,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/884c2a044/4626f16c05374eb6a938009742b7ba60 [2020-10-20 07:04:32,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:04:32,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:04:32,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:32,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:04:32,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:04:32,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7930873b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32, skipping insertion in model container [2020-10-20 07:04:32,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:04:32,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:04:32,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:32,596 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:04:32,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:32,649 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:04:32,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32 WrapperNode [2020-10-20 07:04:32,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:32,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:32,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:04:32,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:04:32,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:32,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:04:32,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:04:32,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:04:32,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... [2020-10-20 07:04:32,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:04:32,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:04:32,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:04:32,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:04:32,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:04:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:04:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:04:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:04:33,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:04:33,024 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 07:04:33,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:33 BoogieIcfgContainer [2020-10-20 07:04:33,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:04:33,027 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:04:33,027 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:04:33,030 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:04:33,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:33,032 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:04:32" (1/3) ... [2020-10-20 07:04:33,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ee44fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:33, skipping insertion in model container [2020-10-20 07:04:33,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:33,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:32" (2/3) ... [2020-10-20 07:04:33,034 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ee44fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:33, skipping insertion in model container [2020-10-20 07:04:33,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:33,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:33" (3/3) ... [2020-10-20 07:04:33,036 INFO L373 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2020-10-20 07:04:33,097 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:04:33,098 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:04:33,098 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:04:33,098 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:04:33,098 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:04:33,099 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:04:33,099 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:04:33,099 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:04:33,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-20 07:04:33,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:33,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:33,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:33,149 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:04:33,149 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:33,149 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:04:33,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-20 07:04:33,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:33,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:33,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:33,152 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 07:04:33,152 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:33,161 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 4#L23-2true [2020-10-20 07:04:33,162 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 7#L23true assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 4#L23-2true [2020-10-20 07:04:33,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:33,168 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-20 07:04:33,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:33,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499054768] [2020-10-20 07:04:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:33,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:33,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:33,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:33,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:33,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2020-10-20 07:04:33,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:33,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653694729] [2020-10-20 07:04:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:33,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:33,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:33,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:33,345 INFO L82 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2020-10-20 07:04:33,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:33,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746887767] [2020-10-20 07:04:33,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:33,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:33,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:33,396 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:33,470 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:33,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:33,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:33,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:33,472 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:33,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:33,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:33,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2020-10-20 07:04:33,474 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:33,474 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:33,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,659 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:33,660 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:33,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:33,679 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:33,679 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post12=0} Honda state: {ULTIMATE.start_main_#t~post12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:33,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:33,718 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:33,721 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post13=0} Honda state: {ULTIMATE.start_main_#t~post13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:33,747 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2020-10-20 07:04:33,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:33,802 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:33,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [13, 1, 2] Nus: [0, 1] 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) [2020-10-20 07:04:33,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:33,866 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,877 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:33,878 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Honda state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:33,910 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:33,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:33,976 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:33,978 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:33,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:33,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:33,979 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:33,979 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:33,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:33,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:33,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:33,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2020-10-20 07:04:33,980 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:33,980 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:33,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:33,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,115 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:34,120 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:34,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:34,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:34,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:34,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:34,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:34,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:34,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:34,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:34,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:34,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:34,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:34,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:34,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:34,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:34,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:34,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:34,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:34,177 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) [2020-10-20 07:04:34,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:34,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:34,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:34,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:34,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:34,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:34,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:34,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:34,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:34,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:34,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:34,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:34,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:34,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:34,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:34,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:34,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:34,258 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:34,261 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-10-20 07:04:34,261 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:34,266 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:34,266 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:34,266 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:34,267 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-10-20 07:04:34,289 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:34,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:34,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:34,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:34,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:34,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:34,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:34,417 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:34,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-10-20 07:04:34,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 45 states and 55 transitions. Complement of second has 7 states. [2020-10-20 07:04:34,477 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 [2020-10-20 07:04:34,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-20 07:04:34,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-20 07:04:34,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:34,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 07:04:34,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:34,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2020-10-20 07:04:34,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:34,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2020-10-20 07:04:34,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:34,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 9 states and 12 transitions. [2020-10-20 07:04:34,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-20 07:04:34,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-20 07:04:34,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-10-20 07:04:34,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:34,496 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-10-20 07:04:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-10-20 07:04:34,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-10-20 07:04:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-20 07:04:34,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-10-20 07:04:34,520 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-20 07:04:34,520 INFO L594 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-20 07:04:34,520 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:04:34,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-10-20 07:04:34,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:34,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:34,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:34,521 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:04:34,521 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:34,522 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 96#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 97#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 99#L23 [2020-10-20 07:04:34,522 INFO L796 eck$LassoCheckResult]: Loop: 99#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 98#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 99#L23 [2020-10-20 07:04:34,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:34,522 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2020-10-20 07:04:34,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:34,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340787300] [2020-10-20 07:04:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:34,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:34,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:34,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:34,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:34,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2020-10-20 07:04:34,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:34,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353496131] [2020-10-20 07:04:34,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:34,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:34,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:34,562 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:34,563 INFO L82 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2020-10-20 07:04:34,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:34,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121798134] [2020-10-20 07:04:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:34,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:34,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:34,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:34,637 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:34,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:34,638 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:34,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:34,638 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:34,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:34,638 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:34,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:34,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2020-10-20 07:04:34,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:34,639 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:34,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:34,740 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:34,741 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 07:04:34,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:34,745 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:34,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:34,798 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,111 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:36,113 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:36,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:36,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:36,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:36,114 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:36,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:36,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:36,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2020-10-20 07:04:36,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:36,115 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:36,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,236 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:36,236 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 07:04:36,241 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 [2020-10-20 07:04:36,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:36,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:36,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:36,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:36,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:36,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:36,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,251 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:36,255 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:04:36,255 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2020-10-20 07:04:36,260 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:36,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:36,260 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:36,260 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,291 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:36,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:36,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:36,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:36,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:36,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:36,419 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:36,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-20 07:04:36,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2020-10-20 07:04:36,441 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 [2020-10-20 07:04:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 07:04:36,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-20 07:04:36,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:36,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 07:04:36,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:36,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-20 07:04:36,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:36,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-10-20 07:04:36,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:36,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-10-20 07:04:36,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-20 07:04:36,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-20 07:04:36,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-10-20 07:04:36,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:36,446 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-20 07:04:36,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-10-20 07:04:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2020-10-20 07:04:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-20 07:04:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2020-10-20 07:04:36,447 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-10-20 07:04:36,447 INFO L594 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-10-20 07:04:36,448 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:04:36,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2020-10-20 07:04:36,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:36,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:36,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:36,449 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-10-20 07:04:36,449 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:36,449 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 155#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 156#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 157#L23 assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 162#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 160#L23 [2020-10-20 07:04:36,449 INFO L796 eck$LassoCheckResult]: Loop: 160#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 161#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 160#L23 [2020-10-20 07:04:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,449 INFO L82 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2020-10-20 07:04:36,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:36,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003316046] [2020-10-20 07:04:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,479 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:36,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2020-10-20 07:04:36,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:36,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330345888] [2020-10-20 07:04:36,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,487 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,489 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:36,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:36,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2020-10-20 07:04:36,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:36,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757818530] [2020-10-20 07:04:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:36,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:36,520 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:36,542 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:36,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:36,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:36,542 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:36,543 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:36,543 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,543 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:36,543 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:36,543 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2020-10-20 07:04:36,543 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:36,543 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:36,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:36,649 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:36,649 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:36,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:36,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post11=0} Honda state: {ULTIMATE.start_main_#t~post11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:36,687 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:36,688 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:36,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:36,728 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=191, ULTIMATE.start_main_#t~nondet10=191} Honda state: {ULTIMATE.start_main_~tmp~0=191, ULTIMATE.start_main_#t~nondet10=191} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-20 07:04:36,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:36,754 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:36,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:36,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:37,868 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:37,870 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:37,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:37,870 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:37,870 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:37,870 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:37,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:37,871 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:37,871 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2020-10-20 07:04:37,871 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:37,871 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:37,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:37,978 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:37,978 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:37,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:37,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:37,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:37,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:37,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:37,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:37,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:37,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:38,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:38,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:38,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,024 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 [2020-10-20 07:04:38,026 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 [2020-10-20 07:04:38,048 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 [2020-10-20 07:04:38,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:38,059 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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:38,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:38,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:38,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:38,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:38,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:38,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:38,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:38,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:38,104 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:04:38,104 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:38,107 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:38,107 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:38,107 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:38,107 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:38,132 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:38,187 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:38,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-20 07:04:38,213 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2020-10-20 07:04:38,213 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 [2020-10-20 07:04:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 07:04:38,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 07:04:38,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,214 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:04:38,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:38,295 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:38,295 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-20 07:04:38,319 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2020-10-20 07:04:38,319 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 [2020-10-20 07:04:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 07:04:38,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 07:04:38,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,320 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:04:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:38,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:38,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:38,378 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 07:04:38,378 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-20 07:04:38,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-10-20 07:04:38,405 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 [2020-10-20 07:04:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-10-20 07:04:38,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 07:04:38,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 07:04:38,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-20 07:04:38,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:38,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-10-20 07:04:38,408 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:04:38,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-10-20 07:04:38,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:04:38,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:04:38,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:04:38,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:04:38,409 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:38,409 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:38,409 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:38,409 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 07:04:38,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:04:38,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:04:38,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:04:38,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:04:38 BoogieIcfgContainer [2020-10-20 07:04:38,417 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:04:38,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:04:38,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:04:38,418 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:04:38,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:33" (3/4) ... [2020-10-20 07:04:38,422 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:04:38,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:04:38,430 INFO L168 Benchmark]: Toolchain (without parser) took 6048.34 ms. Allocated memory was 41.9 MB in the beginning and 54.0 MB in the end (delta: 12.1 MB). Free memory was 22.7 MB in the beginning and 18.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,431 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 32.0 MB. Free memory was 10.6 MB in the beginning and 10.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.26 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.8 MB in the beginning and 24.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 42.5 MB. Free memory was 24.3 MB in the beginning and 22.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,434 INFO L168 Benchmark]: Boogie Preprocessor took 45.68 ms. Allocated memory is still 42.5 MB. Free memory was 22.6 MB in the beginning and 21.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,438 INFO L168 Benchmark]: RCFGBuilder took 283.94 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 21.2 MB in the beginning and 27.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,439 INFO L168 Benchmark]: BuchiAutomizer took 5390.92 ms. Allocated memory was 45.1 MB in the beginning and 54.0 MB in the end (delta: 8.9 MB). Free memory was 27.4 MB in the beginning and 18.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,446 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 54.0 MB. Free memory was 18.6 MB in the beginning and 18.0 MB in the end (delta: 525.0 kB). Peak memory consumption was 525.0 kB. Max. memory is 14.3 GB. [2020-10-20 07:04:38,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 32.0 MB. Free memory was 10.6 MB in the beginning and 10.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 271.26 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.8 MB in the beginning and 24.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 42.5 MB. Free memory was 24.3 MB in the beginning and 22.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 45.68 ms. Allocated memory is still 42.5 MB. Free memory was 22.6 MB in the beginning and 21.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 283.94 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 21.2 MB in the beginning and 27.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 5390.92 ms. Allocated memory was 45.1 MB in the beginning and 54.0 MB in the end (delta: 8.9 MB). Free memory was 27.4 MB in the beginning and 18.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 14.3 GB. * Witness Printer took 4.14 ms. Allocated memory is still 54.0 MB. Free memory was 18.6 MB in the beginning and 18.0 MB in the end (delta: 525.0 kB). Peak memory consumption was 525.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function z and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 197 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 197 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 4.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 27 SDslu, 19 SDs, 0 SdLazy, 35 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div447 bol100 ite100 ukn100 eq150 hnf47 smp83 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...