./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/trex04.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/trex04.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 e06bd2336dde95a95ac0cddfba0f9d889c333866 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:06:22,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:06:22,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:06:22,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:06:22,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:06:22,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:06:22,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:06:22,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:06:22,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:06:22,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:06:22,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:06:22,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:06:22,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:06:22,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:06:22,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:06:22,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:06:22,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:06:22,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:06:22,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:06:22,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:06:22,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:06:22,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:06:22,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:06:22,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:06:22,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:06:22,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:06:22,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:06:22,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:06:22,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:06:22,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:06:22,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:06:22,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:06:22,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:06:22,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:06:22,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:06:22,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:06:22,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:06:22,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:06:22,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:06:22,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:06:22,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:06:22,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:06:22,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:06:22,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:06:22,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:06:22,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:06:22,214 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:06:22,215 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:06:22,215 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:06:22,215 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:06:22,215 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:06:22,216 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:06:22,217 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:06:22,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:06:22,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:06:22,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:06:22,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:06:22,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:06:22,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:06:22,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:06:22,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:06:22,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:06:22,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:06:22,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:06:22,221 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:06:22,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:06:22,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:06:22,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:06:22,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:06:22,223 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:06:22,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:06:22,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:06:22,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:06:22,225 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:06:22,227 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:06:22,228 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 -> e06bd2336dde95a95ac0cddfba0f9d889c333866 [2020-07-29 02:06:22,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:06:22,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:06:22,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:06:22,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:06:22,576 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:06:22,577 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex04.c [2020-07-29 02:06:22,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649ef03e9/5e518df5ae8f495facafcf9d5f49c701/FLAG2680a5e7e [2020-07-29 02:06:23,131 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:06:23,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex04.c [2020-07-29 02:06:23,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649ef03e9/5e518df5ae8f495facafcf9d5f49c701/FLAG2680a5e7e [2020-07-29 02:06:23,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649ef03e9/5e518df5ae8f495facafcf9d5f49c701 [2020-07-29 02:06:23,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:06:23,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:06:23,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:06:23,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:06:23,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:06:23,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab0d7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23, skipping insertion in model container [2020-07-29 02:06:23,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:06:23,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:06:23,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:06:23,738 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:06:23,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:06:23,776 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:06:23,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23 WrapperNode [2020-07-29 02:06:23,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:06:23,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:06:23,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:06:23,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:06:23,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:06:23,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:06:23,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:06:23,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:06:23,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (1/1) ... [2020-07-29 02:06:23,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:06:23,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:06:23,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:06:23,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:06:23,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (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 [2020-07-29 02:06:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:06:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:06:24,357 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:06:24,358 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-07-29 02:06:24,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:06:24 BoogieIcfgContainer [2020-07-29 02:06:24,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:06:24,362 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:06:24,363 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:06:24,366 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:06:24,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:06:24,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:06:23" (1/3) ... [2020-07-29 02:06:24,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f053e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:06:24, skipping insertion in model container [2020-07-29 02:06:24,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:06:24,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:06:23" (2/3) ... [2020-07-29 02:06:24,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f053e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:06:24, skipping insertion in model container [2020-07-29 02:06:24,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:06:24,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:06:24" (3/3) ... [2020-07-29 02:06:24,372 INFO L371 chiAutomizerObserver]: Analyzing ICFG trex04.c [2020-07-29 02:06:24,426 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:06:24,426 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:06:24,426 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:06:24,427 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:06:24,427 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:06:24,427 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:06:24,427 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:06:24,427 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:06:24,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 02:06:24,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 02:06:24,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:06:24,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:06:24,471 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:06:24,471 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 02:06:24,471 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:06:24,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 02:06:24,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 02:06:24,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:06:24,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:06:24,477 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:06:24,477 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 02:06:24,483 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L29true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 16#L32true assume !(0 != main_~c1~1 % 256); 12#L32-2true assume !(0 != main_~c2~1 % 256); 17#L33true main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 4#L37true assume !(0 != main_~c1~1 % 256); 20#L37-1true assume !(0 != main_~c2~1 % 256); 8#L40-1true [2020-07-29 02:06:24,484 INFO L796 eck$LassoCheckResult]: Loop: 8#L40-1true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 8#L40-1true [2020-07-29 02:06:24,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:24,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1481824371, now seen corresponding path program 1 times [2020-07-29 02:06:24,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:06:24,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821667932] [2020-07-29 02:06:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:06:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:24,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:24,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:24,619 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:06:24,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:24,621 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2020-07-29 02:06:24,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:06:24,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710905463] [2020-07-29 02:06:24,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:06:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:24,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:24,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:24,632 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:06:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:24,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1308084818, now seen corresponding path program 1 times [2020-07-29 02:06:24,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:06:24,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681805555] [2020-07-29 02:06:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:06:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:24,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:24,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:24,678 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:06:24,906 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:06:24,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:06:24,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:06:24,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:06:24,908 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:06:24,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:24,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:06:24,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:06:24,909 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2020-07-29 02:06:24,909 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:06:24,910 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:06:24,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:24,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,342 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:06:25,344 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) [2020-07-29 02:06:25,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:25,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,362 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:25,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c1~1=0} Honda state: {ULTIMATE.start_main_~c1~1=-256} 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 [2020-07-29 02:06:25,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,462 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,462 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c2~1=0} Honda state: {ULTIMATE.start_main_~c2~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:25,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,502 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,502 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:25,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,540 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,540 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=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 [2020-07-29 02:06:25,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,568 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-07-29 02:06:25,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:06:25,610 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet8=0} Honda state: {ULTIMATE.start_main_#t~nondet8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:25,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:06:25,657 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 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 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 [2020-07-29 02:06:25,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:06:25,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:06:25,761 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 02:06:25,764 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:06:25,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:06:25,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:06:25,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:06:25,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 02:06:25,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:25,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:06:25,767 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:06:25,767 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2020-07-29 02:06:25,767 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:06:25,767 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:06:25,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:25,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:06:26,196 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:06:26,203 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,211 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 [2020-07-29 02:06:26,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:06:26,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:06:26,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 02:06:26,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,269 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 [2020-07-29 02:06:26,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:06:26,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:06:26,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,275 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 02:06:26,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 02:06:26,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 02:06:26,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:06:26,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:06:26,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,434 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 [2020-07-29 02:06:26,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 02:06:26,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,500 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 [2020-07-29 02:06:26,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:06:26,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:06:26,504 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 [2020-07-29 02:06:26,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,554 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 [2020-07-29 02:06:26,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:06:26,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:06:26,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:06:26,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:06:26,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 02:06:26,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 02:06:26,700 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-29 02:06:26,701 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:06:26,732 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:06:26,737 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-29 02:06:26,737 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 02:06:26,738 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~d~0 - 1 >= 0] [2020-07-29 02:06:26,798 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-29 02:06:26,806 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0;" [2020-07-29 02:06:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:06:26,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:06:26,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-29 02:06:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:06:26,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:06:26,924 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#unseeded} havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,926 INFO L280 TraceCheckUtils]: 1: Hoare triple {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,927 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} assume !(0 != main_~c1~1 % 256); {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,928 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} assume !(0 != main_~c2~1 % 256); {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,929 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,930 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} assume !(0 != main_~c1~1 % 256); {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,931 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} assume !(0 != main_~c2~1 % 256); {47#(and unseeded (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:06:26,938 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-29 02:06:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:06:26,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:06:26,947 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(and (>= oldRank0 ULTIMATE.start_main_~x~0) (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; {50#(and (or (and (> oldRank0 ULTIMATE.start_main_~x~0) (>= oldRank0 0)) unseeded) (>= (+ ULTIMATE.start_main_~d~0 (- 1)) 0))} is VALID [2020-07-29 02:06:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:06:26,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:06:26,974 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:06:26,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:26,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:26,987 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-07-29 02:06:26,988 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2020-07-29 02:06:27,238 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 61 states and 89 transitions. Complement of second has 8 states. [2020-07-29 02:06:27,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-29 02:06:27,239 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:06:27,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-07-29 02:06:27,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 02:06:27,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:06:27,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:06:27,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 02:06:27,248 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 02:06:27,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:06:27,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:06:27,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 89 transitions. [2020-07-29 02:06:27,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 02:06:27,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:06:27,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:06:27,255 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 18 states. [2020-07-29 02:06:27,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 02:06:27,259 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 02:06:27,259 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 02:06:27,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 02:06:27,263 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 02:06:27,263 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 61 states and 89 transitions. cyclomatic complexity: 31 [2020-07-29 02:06:27,264 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 02:06:27,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:06:27,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:06:27,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:06:27,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 61 letters. Loop has 61 letters. [2020-07-29 02:06:27,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 61 letters. Loop has 61 letters. [2020-07-29 02:06:27,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 61 letters. Loop has 61 letters. [2020-07-29 02:06:27,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 18 letters. Loop has 18 letters. [2020-07-29 02:06:27,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 18 letters. Loop has 18 letters. [2020-07-29 02:06:27,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 18 letters. Loop has 18 letters. [2020-07-29 02:06:27,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 02:06:27,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 02:06:27,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 6 letters. Loop has 6 letters. [2020-07-29 02:06:27,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:06:27,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:06:27,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:06:27,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:06:27,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:06:27,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:06:27,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states. Stem has 9 letters. Loop has 1 letters. [2020-07-29 02:06:27,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 1 letters. [2020-07-29 02:06:27,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 61 states and 89 transitions. cyclomatic complexity: 31 Stem has 9 letters. Loop has 1 letters. [2020-07-29 02:06:27,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,282 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:06:27,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 02:06:27,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2020-07-29 02:06:27,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 1 letters. [2020-07-29 02:06:27,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 8 letters. Loop has 1 letters. [2020-07-29 02:06:27,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 2 letters. [2020-07-29 02:06:27,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:06:27,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. cyclomatic complexity: 31 [2020-07-29 02:06:27,297 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 02:06:27,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 23 states and 37 transitions. [2020-07-29 02:06:27,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-07-29 02:06:27,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-07-29 02:06:27,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 37 transitions. [2020-07-29 02:06:27,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:06:27,307 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 37 transitions. [2020-07-29 02:06:27,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 37 transitions. [2020-07-29 02:06:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-07-29 02:06:27,344 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:06:27,344 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states and 37 transitions. Second operand 20 states. [2020-07-29 02:06:27,345 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states and 37 transitions. Second operand 20 states. [2020-07-29 02:06:27,349 INFO L87 Difference]: Start difference. First operand 23 states and 37 transitions. Second operand 20 states. [2020-07-29 02:06:27,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:06:27,355 INFO L93 Difference]: Finished difference Result 23 states and 37 transitions. [2020-07-29 02:06:27,356 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2020-07-29 02:06:27,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:06:27,358 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:06:27,358 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 23 states and 37 transitions. [2020-07-29 02:06:27,358 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 23 states and 37 transitions. [2020-07-29 02:06:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:06:27,361 INFO L93 Difference]: Finished difference Result 23 states and 37 transitions. [2020-07-29 02:06:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2020-07-29 02:06:27,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:06:27,362 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:06:27,363 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:06:27,363 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:06:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-29 02:06:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2020-07-29 02:06:27,367 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2020-07-29 02:06:27,367 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2020-07-29 02:06:27,368 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:06:27,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 34 transitions. [2020-07-29 02:06:27,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 02:06:27,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:06:27,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:06:27,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:06:27,370 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 02:06:27,370 INFO L794 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 156#L29 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 157#L32 assume 0 != main_~c1~1 % 256;main_~d~0 := main_~d~0 - 1; 158#L32-2 assume !(0 != main_~c2~1 % 256); 160#L33 main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 153#L37 assume !(0 != main_~c1~1 % 256); 152#L37-1 assume !(0 != main_~c2~1 % 256); 161#L40-1 [2020-07-29 02:06:27,371 INFO L796 eck$LassoCheckResult]: Loop: 161#L40-1 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 161#L40-1 [2020-07-29 02:06:27,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:27,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1483671413, now seen corresponding path program 1 times [2020-07-29 02:06:27,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:06:27,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892173641] [2020-07-29 02:06:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:06:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:27,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:27,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:27,460 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:06:27,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 2 times [2020-07-29 02:06:27,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:06:27,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516956941] [2020-07-29 02:06:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:06:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:27,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:27,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:27,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:06:27,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:06:27,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1250826516, now seen corresponding path program 1 times [2020-07-29 02:06:27,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:06:27,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068253018] [2020-07-29 02:06:27,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:06:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:27,528 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:06:27,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:06:27,558 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:06:27,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:06:27 BoogieIcfgContainer [2020-07-29 02:06:27,738 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:06:27,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:06:27,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:06:27,739 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:06:27,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:06:24" (3/4) ... [2020-07-29 02:06:27,743 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:06:27,807 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:06:27,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:06:27,810 INFO L168 Benchmark]: Toolchain (without parser) took 4333.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:06:27,811 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:06:27,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.31 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:06:27,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:06:27,814 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:06:27,815 INFO L168 Benchmark]: RCFGBuilder took 459.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:06:27,821 INFO L168 Benchmark]: BuchiAutomizer took 3376.05 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 96.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -92.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2020-07-29 02:06:27,822 INFO L168 Benchmark]: Witness Printer took 68.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:06:27,834 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.31 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 459.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3376.05 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 96.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -92.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. * Witness Printer took 68.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 6 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 49 SDslu, 24 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf93 lsp67 ukn100 mio100 lsp100 div209 bol100 ite100 ukn100 eq145 hnf45 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 40]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cbdda94=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a8a60ba=0, c2=256, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@748a0371=0, c1=256, \result=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@457da068=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4716bb29=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L27] int d = 1; [L28] int x = __VERIFIER_nondet_int(); [L29] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L30] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L30] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L32] COND TRUE \read(c1) [L32] d = d - 1 [L33] COND FALSE !(\read(c2)) [L35] c1=__VERIFIER_nondet_bool() [L35] c2=__VERIFIER_nondet_bool() [L37] COND FALSE !(\read(c1)) [L38] COND FALSE !(\read(c2)) Loop: [L40] COND TRUE x>0 [L42] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...