./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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_1.5.800.v20200727-1323.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/reducercommutativity/sep05-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 16:31:47,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 16:31:47,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 16:31:47,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 16:31:47,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 16:31:47,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 16:31:47,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 16:31:47,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 16:31:47,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 16:31:47,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 16:31:47,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 16:31:47,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 16:31:47,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 16:31:47,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 16:31:47,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 16:31:47,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 16:31:47,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 16:31:47,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 16:31:47,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 16:31:47,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 16:31:47,414 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 16:31:47,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 16:31:47,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 16:31:47,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 16:31:47,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 16:31:47,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 16:31:47,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 16:31:47,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 16:31:47,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 16:31:47,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 16:31:47,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 16:31:47,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 16:31:47,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 16:31:47,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 16:31:47,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 16:31:47,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 16:31:47,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 16:31:47,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 16:31:47,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 16:31:47,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 16:31:47,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 16:31:47,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 16:31:47,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 16:31:47,450 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 16:31:47,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 16:31:47,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 16:31:47,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 16:31:47,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 16:31:47,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 16:31:47,452 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 16:31:47,452 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 16:31:47,453 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 16:31:47,453 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 16:31:47,453 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 16:31:47,453 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 16:31:47,454 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 16:31:47,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 16:31:47,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 16:31:47,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 16:31:47,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 16:31:47,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 16:31:47,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 16:31:47,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 16:31:47,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 16:31:47,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 16:31:47,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 16:31:47,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 16:31:47,456 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 16:31:47,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 16:31:47,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 16:31:47,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 16:31:47,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 16:31:47,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 16:31:47,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 16:31:47,458 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 16:31:47,458 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 [2022-07-14 16:31:47,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 16:31:47,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 16:31:47,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 16:31:47,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 16:31:47,672 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 16:31:47,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/sep05-1.i [2022-07-14 16:31:47,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d790fcc1/71ccbb537192454c8a3ffe5532d74867/FLAGc48add3da [2022-07-14 16:31:48,092 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 16:31:48,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i [2022-07-14 16:31:48,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d790fcc1/71ccbb537192454c8a3ffe5532d74867/FLAGc48add3da [2022-07-14 16:31:48,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d790fcc1/71ccbb537192454c8a3ffe5532d74867 [2022-07-14 16:31:48,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 16:31:48,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 16:31:48,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 16:31:48,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 16:31:48,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 16:31:48,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4903fe9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48, skipping insertion in model container [2022-07-14 16:31:48,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 16:31:48,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 16:31:48,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i[1287,1300] [2022-07-14 16:31:48,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:31:48,267 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 16:31:48,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i[1287,1300] [2022-07-14 16:31:48,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 16:31:48,290 INFO L208 MainTranslator]: Completed translation [2022-07-14 16:31:48,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48 WrapperNode [2022-07-14 16:31:48,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 16:31:48,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 16:31:48,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 16:31:48,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 16:31:48,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,319 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-07-14 16:31:48,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 16:31:48,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 16:31:48,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 16:31:48,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 16:31:48,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 16:31:48,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 16:31:48,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 16:31:48,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 16:31:48,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (1/1) ... [2022-07-14 16:31:48,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:48,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:48,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:48,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 16:31:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 16:31:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 16:31:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 16:31:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 16:31:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 16:31:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 16:31:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 16:31:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 16:31:48,510 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 16:31:48,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 16:31:48,752 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 16:31:48,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 16:31:48,762 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-14 16:31:48,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:31:48 BoogieIcfgContainer [2022-07-14 16:31:48,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 16:31:48,765 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 16:31:48,766 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 16:31:48,768 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 16:31:48,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:31:48,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 04:31:48" (1/3) ... [2022-07-14 16:31:48,769 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47e8004d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:31:48, skipping insertion in model container [2022-07-14 16:31:48,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:31:48,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:31:48" (2/3) ... [2022-07-14 16:31:48,770 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47e8004d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 04:31:48, skipping insertion in model container [2022-07-14 16:31:48,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 16:31:48,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:31:48" (3/3) ... [2022-07-14 16:31:48,772 INFO L354 chiAutomizerObserver]: Analyzing ICFG sep05-1.i [2022-07-14 16:31:48,823 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 16:31:48,823 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 16:31:48,824 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 16:31:48,824 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 16:31:48,824 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 16:31:48,824 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 16:31:48,824 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 16:31:48,825 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 16:31:48,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:48,855 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-07-14 16:31:48,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:31:48,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:31:48,859 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 16:31:48,859 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 16:31:48,859 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 16:31:48,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:48,866 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-07-14 16:31:48,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:31:48,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:31:48,867 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 16:31:48,867 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 16:31:48,872 INFO L752 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 26#L37-3true [2022-07-14 16:31:48,872 INFO L754 eck$LassoCheckResult]: Loop: 26#L37-3true assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 17#L37-2true main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 26#L37-3true [2022-07-14 16:31:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 16:31:48,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:48,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805402239] [2022-07-14 16:31:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:48,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:48,961 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:48,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:48,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:48,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-07-14 16:31:48,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:48,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654612525] [2022-07-14 16:31:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:48,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:49,013 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:49,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:49,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-07-14 16:31:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:49,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442673806] [2022-07-14 16:31:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:49,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:49,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:49,299 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 16:31:49,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 16:31:49,300 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 16:31:49,300 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 16:31:49,300 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 16:31:49,300 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 16:31:49,301 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 16:31:49,301 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration1_Lasso [2022-07-14 16:31:49,301 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 16:31:49,301 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 16:31:49,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:49,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 16:31:49,661 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 16:31:49,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-14 16:31:49,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 16:31:49,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 16:31:49,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 16:31:49,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:49,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-14 16:31:49,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-14 16:31:49,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 16:31:49,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 16:31:49,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 16:31:49,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:49,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-14 16:31:49,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 16:31:49,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 16:31:49,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-14 16:31:49,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:49,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:49,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,834 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-14 16:31:49,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 16:31:49,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 16:31:49,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 16:31:49,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:49,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:49,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,875 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-14 16:31:49,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 16:31:49,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 16:31:49,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 16:31:49,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:49,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:49,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-14 16:31:49,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 16:31:49,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 16:31:49,933 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:49,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:49,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:49,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:49,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:49,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-14 16:31:49,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:49,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:49,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:49,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:49,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:49,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 16:31:49,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 16:31:49,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 16:31:50,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:50,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:50,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:50,021 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:50,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-14 16:31:50,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 16:31:50,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 16:31:50,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 16:31:50,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 16:31:50,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 16:31:50,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 16:31:50,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 16:31:50,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 16:31:50,054 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-07-14 16:31:50,054 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-07-14 16:31:50,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:50,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:50,068 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 16:31:50,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-14 16:31:50,112 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 16:31:50,133 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-14 16:31:50,134 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 16:31:50,134 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1) = -2*ULTIMATE.start_main_~i~1#1 + 9 Supporting invariants [] [2022-07-14 16:31:50,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-14 16:31:50,164 INFO L293 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2022-07-14 16:31:50,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:31:50,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 16:31:50,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 16:31:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:31:50,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 16:31:50,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 16:31:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,306 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 [2022-07-14 16:31:50,307 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:50,343 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 113 transitions. Complement of second has 7 states. [2022-07-14 16:31:50,348 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 [2022-07-14 16:31:50,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2022-07-14 16:31:50,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 76 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-14 16:31:50,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 16:31:50,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 76 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-14 16:31:50,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 16:31:50,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 76 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-14 16:31:50,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 16:31:50,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 113 transitions. [2022-07-14 16:31:50,363 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:50,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 22 states and 30 transitions. [2022-07-14 16:31:50,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-07-14 16:31:50,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-14 16:31:50,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2022-07-14 16:31:50,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:31:50,372 INFO L369 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-07-14 16:31:50,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2022-07-14 16:31:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-14 16:31:50,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2022-07-14 16:31:50,392 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-07-14 16:31:50,392 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2022-07-14 16:31:50,392 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 16:31:50,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2022-07-14 16:31:50,395 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:50,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:31:50,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:31:50,395 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-14 16:31:50,395 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:31:50,396 INFO L752 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 176#L37-3 assume !(main_~i~1#1 < 5); 181#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 182#L18-3 [2022-07-14 16:31:50,396 INFO L754 eck$LassoCheckResult]: Loop: 182#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 185#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 183#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 182#L18-3 [2022-07-14 16:31:50,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,397 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2022-07-14 16:31:50,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:50,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856658503] [2022-07-14 16:31:50,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:31:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:31:50,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856658503] [2022-07-14 16:31:50,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856658503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 16:31:50,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 16:31:50,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 16:31:50,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098308000] [2022-07-14 16:31:50,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 16:31:50,455 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 16:31:50,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,457 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2022-07-14 16:31:50,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:50,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402820656] [2022-07-14 16:31:50,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:50,476 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:50,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:50,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:31:50,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 16:31:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 16:31:50,540 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:31:50,548 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2022-07-14 16:31:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 16:31:50,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2022-07-14 16:31:50,549 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:50,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2022-07-14 16:31:50,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-14 16:31:50,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-14 16:31:50,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2022-07-14 16:31:50,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:31:50,550 INFO L369 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-07-14 16:31:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2022-07-14 16:31:50,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-07-14 16:31:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2022-07-14 16:31:50,552 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-07-14 16:31:50,552 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-07-14 16:31:50,552 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 16:31:50,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2022-07-14 16:31:50,553 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:50,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:31:50,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:31:50,553 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-14 16:31:50,553 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:31:50,553 INFO L752 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 227#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 216#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 217#L37-3 assume !(main_~i~1#1 < 5); 232#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 233#L18-3 [2022-07-14 16:31:50,553 INFO L754 eck$LassoCheckResult]: Loop: 233#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 236#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 234#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 233#L18-3 [2022-07-14 16:31:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2022-07-14 16:31:50,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:50,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930047732] [2022-07-14 16:31:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:31:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:31:50,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930047732] [2022-07-14 16:31:50,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930047732] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 16:31:50,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101826003] [2022-07-14 16:31:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 16:31:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:50,578 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 16:31:50,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 16:31:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:31:50,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 16:31:50,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 16:31:50,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 16:31:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101826003] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 16:31:50,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 16:31:50,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-14 16:31:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417219291] [2022-07-14 16:31:50,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 16:31:50,686 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 16:31:50,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,686 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2022-07-14 16:31:50,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:50,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420299345] [2022-07-14 16:31:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:50,703 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:50,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:50,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:31:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 16:31:50,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 16:31:50,747 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:31:50,770 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-07-14 16:31:50,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 16:31:50,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2022-07-14 16:31:50,773 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:50,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 35 transitions. [2022-07-14 16:31:50,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-14 16:31:50,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-14 16:31:50,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2022-07-14 16:31:50,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:31:50,776 INFO L369 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-14 16:31:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2022-07-14 16:31:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-14 16:31:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-07-14 16:31:50,779 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-14 16:31:50,779 INFO L374 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-14 16:31:50,779 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 16:31:50,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2022-07-14 16:31:50,782 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:50,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:31:50,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:31:50,783 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2022-07-14 16:31:50,783 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:31:50,784 INFO L752 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 309#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 317#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 306#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 307#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 328#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 333#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 332#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 331#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 330#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 329#L37-3 assume !(main_~i~1#1 < 5); 322#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 323#L18-3 [2022-07-14 16:31:50,784 INFO L754 eck$LassoCheckResult]: Loop: 323#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 326#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 324#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 323#L18-3 [2022-07-14 16:31:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2022-07-14 16:31:50,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:50,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102277509] [2022-07-14 16:31:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 16:31:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 16:31:50,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102277509] [2022-07-14 16:31:50,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102277509] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 16:31:50,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562564533] [2022-07-14 16:31:50,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 16:31:50,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 16:31:50,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 16:31:50,850 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 16:31:50,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 16:31:50,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 16:31:50,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 16:31:50,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 16:31:50,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 16:31:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 16:31:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 16:31:50,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562564533] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 16:31:50,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 16:31:50,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-07-14 16:31:50,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089217411] [2022-07-14 16:31:50,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 16:31:50,951 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 16:31:50,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2022-07-14 16:31:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:50,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231496624] [2022-07-14 16:31:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:50,956 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:50,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:51,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 16:31:51,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 16:31:51,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-14 16:31:51,014 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:51,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 16:31:51,057 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2022-07-14 16:31:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 16:31:51,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2022-07-14 16:31:51,059 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:51,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2022-07-14 16:31:51,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-14 16:31:51,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-14 16:31:51,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2022-07-14 16:31:51,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 16:31:51,060 INFO L369 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-07-14 16:31:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2022-07-14 16:31:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-14 16:31:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 16:31:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-07-14 16:31:51,062 INFO L392 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-07-14 16:31:51,063 INFO L374 stractBuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-07-14 16:31:51,063 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-14 16:31:51,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2022-07-14 16:31:51,063 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-07-14 16:31:51,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 16:31:51,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 16:31:51,064 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2022-07-14 16:31:51,064 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 16:31:51,064 INFO L752 eck$LassoCheckResult]: Stem: 443#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 444#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~post5#1, main_~i~1#1, main_#t~ret7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~ret10#1, main_#t~mem11#1, main_#t~mem13#1, main_#t~post12#1, main_~i~2#1, main_#t~ret14#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;main_~i~1#1 := 0; 452#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 441#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 442#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 463#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 470#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 469#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 468#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 467#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 466#L37-3 assume !!(main_~i~1#1 < 5);call write~int(main_#t~nondet6#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet6#1; 465#L37-2 main_#t~post5#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 464#L37-3 assume !(main_~i~1#1 < 5); 457#L37-4 assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem2#1, sep_#t~post3#1, sep_#t~post4#1, sep_#t~post1#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 458#L18-3 [2022-07-14 16:31:51,064 INFO L754 eck$LassoCheckResult]: Loop: 458#L18-3 assume !!(sep_~i~0#1 < 5);call sep_#t~mem2#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 461#L20 assume 0 == (if sep_#t~mem2#1 < 0 && 0 != sep_#t~mem2#1 % 2 then sep_#t~mem2#1 % 2 - 2 else sep_#t~mem2#1 % 2);havoc sep_#t~mem2#1;sep_#t~post3#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 459#L18-2 sep_#t~post1#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post1#1;havoc sep_#t~post1#1; 458#L18-3 [2022-07-14 16:31:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 3 times [2022-07-14 16:31:51,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:51,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517528831] [2022-07-14 16:31:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:51,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:51,101 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:51,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2022-07-14 16:31:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:51,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52202761] [2022-07-14 16:31:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:51,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:51,141 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:51,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:51,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 16:31:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2022-07-14 16:31:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 16:31:51,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100097349] [2022-07-14 16:31:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 16:31:51,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 16:31:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:51,182 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 16:31:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 16:31:51,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 16:31:51,766 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 16:31:51,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 16:31:51,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 16:31:51,766 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 16:31:51,766 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 16:31:51,766 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 16:31:51,766 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 16:31:51,766 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 16:31:51,766 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration5_Lasso [2022-07-14 16:31:51,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 16:31:51,766 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 16:31:51,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 16:31:51,855 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:601) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:914) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:823) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:247) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:310) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:363) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 16:31:51,859 INFO L158 Benchmark]: Toolchain (without parser) took 3743.38ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 66.9MB in the beginning and 48.6MB in the end (delta: 18.3MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2022-07-14 16:31:51,859 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 74.6MB in the end (delta: 23.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:31:51,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.02ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 77.5MB in the end (delta: -10.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-07-14 16:31:51,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.16ms. Allocated memory is still 102.8MB. Free memory was 77.0MB in the beginning and 75.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 16:31:51,860 INFO L158 Benchmark]: Boogie Preprocessor took 26.11ms. Allocated memory is still 102.8MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 16:31:51,860 INFO L158 Benchmark]: RCFGBuilder took 417.91ms. Allocated memory is still 102.8MB. Free memory was 74.0MB in the beginning and 61.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 16:31:51,860 INFO L158 Benchmark]: BuchiAutomizer took 3092.66ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 61.0MB in the beginning and 48.6MB in the end (delta: 12.4MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2022-07-14 16:31:51,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 74.6MB in the end (delta: 23.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.02ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 77.5MB in the end (delta: -10.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.16ms. Allocated memory is still 102.8MB. Free memory was 77.0MB in the beginning and 75.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.11ms. Allocated memory is still 102.8MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.91ms. Allocated memory is still 102.8MB. Free memory was 74.0MB in the beginning and 61.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3092.66ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 61.0MB in the beginning and 48.6MB in the end (delta: 12.4MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-14 16:31:51,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-07-14 16:31:52,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 16:31:52,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null