./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/termination-memory-linkedlists/ll_append-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 17:39:22,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:39:22,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:39:22,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:39:22,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:39:22,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:39:22,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:39:22,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:39:22,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:39:22,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:39:22,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:39:22,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:39:22,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:39:22,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:39:22,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:39:22,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:39:22,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:39:22,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:39:22,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:39:22,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:39:22,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:39:22,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:39:22,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:39:22,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:39:22,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:39:22,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:39:22,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:39:22,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:39:22,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:39:22,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:39:22,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:39:22,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:39:22,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:39:22,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:39:22,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:39:22,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:39:22,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:39:22,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:39:22,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:39:22,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:39:22,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:39:22,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-19 17:39:22,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:39:22,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:39:22,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:39:22,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:39:22,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:39:22,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:39:22,382 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:39:22,382 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:39:22,382 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:39:22,382 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:39:22,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:39:22,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:39:22,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:39:22,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:39:22,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:39:22,384 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:39:22,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:39:22,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:39:22,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:39:22,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:39:22,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:39:22,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:39:22,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:39:22,386 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:39:22,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 [2021-12-19 17:39:22,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:39:22,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:39:22,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:39:22,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:39:22,602 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:39:22,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2021-12-19 17:39:22,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a18d525/dafb47590cd140eab824a6291026be76/FLAG8f4105209 [2021-12-19 17:39:23,023 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:39:23,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2021-12-19 17:39:23,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a18d525/dafb47590cd140eab824a6291026be76/FLAG8f4105209 [2021-12-19 17:39:23,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a18d525/dafb47590cd140eab824a6291026be76 [2021-12-19 17:39:23,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:39:23,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:39:23,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:39:23,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:39:23,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:39:23,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d02fd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23, skipping insertion in model container [2021-12-19 17:39:23,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:39:23,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:39:23,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:39:23,306 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:39:23,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:39:23,367 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:39:23,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23 WrapperNode [2021-12-19 17:39:23,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:39:23,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:39:23,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:39:23,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:39:23,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,404 INFO L137 Inliner]: procedures = 115, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2021-12-19 17:39:23,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:39:23,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:39:23,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:39:23,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:39:23,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:39:23,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:39:23,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:39:23,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:39:23,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (1/1) ... [2021-12-19 17:39:23,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:23,460 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) [2021-12-19 17:39:23,467 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 [2021-12-19 17:39:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2021-12-19 17:39:23,493 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2021-12-19 17:39:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 17:39:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-19 17:39:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-19 17:39:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-19 17:39:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure length [2021-12-19 17:39:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2021-12-19 17:39:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:39:23,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:39:23,562 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:39:23,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:39:23,731 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:39:23,735 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:39:23,736 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 17:39:23,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:39:23 BoogieIcfgContainer [2021-12-19 17:39:23,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:39:23,738 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:39:23,738 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:39:23,740 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:39:23,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:39:23,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:39:23" (1/3) ... [2021-12-19 17:39:23,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a70b35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:39:23, skipping insertion in model container [2021-12-19 17:39:23,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:39:23,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:39:23" (2/3) ... [2021-12-19 17:39:23,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a70b35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:39:23, skipping insertion in model container [2021-12-19 17:39:23,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:39:23,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:39:23" (3/3) ... [2021-12-19 17:39:23,743 INFO L388 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2021-12-19 17:39:23,783 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:39:23,783 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:39:23,783 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:39:23,783 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:39:23,783 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:39:23,784 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:39:23,784 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:39:23,784 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:39:23,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-19 17:39:23,826 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-19 17:39:23,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:23,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:23,830 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-19 17:39:23,831 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:39:23,831 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:39:23,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-19 17:39:23,835 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-12-19 17:39:23,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:23,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:23,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-19 17:39:23,836 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:39:23,841 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 15#L574true assume !(main_~n~0#1 < 1); 27#L577true call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 14#new_llENTRYtrue [2021-12-19 17:39:23,841 INFO L793 eck$LassoCheckResult]: Loop: 14#new_llENTRYtrue ~n := #in~n; 21#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 16#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 14#new_llENTRYtrue [2021-12-19 17:39:23,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:23,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2021-12-19 17:39:23,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:23,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311375772] [2021-12-19 17:39:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:23,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:23,921 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:23,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:23,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:23,951 INFO L85 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2021-12-19 17:39:23,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:23,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149406944] [2021-12-19 17:39:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:23,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:23,980 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:24,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:24,014 INFO L85 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2021-12-19 17:39:24,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:24,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380825378] [2021-12-19 17:39:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:24,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:24,032 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:24,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:24,685 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:39:24,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:39:24,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:39:24,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:39:24,687 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:39:24,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:24,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:39:24,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:39:24,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2021-12-19 17:39:24,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:39:24,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:39:24,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:39:24,996 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:39:24,999 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:39:25,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,001 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) [2021-12-19 17:39:25,002 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 [2021-12-19 17:39:25,004 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 [2021-12-19 17:39:25,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,049 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) [2021-12-19 17:39:25,050 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 [2021-12-19 17:39:25,051 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 [2021-12-19 17:39:25,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,091 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) [2021-12-19 17:39:25,092 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 [2021-12-19 17:39:25,093 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 [2021-12-19 17:39:25,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,131 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 [2021-12-19 17:39:25,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,133 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) [2021-12-19 17:39:25,134 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 [2021-12-19 17:39:25,135 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 [2021-12-19 17:39:25,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,175 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 [2021-12-19 17:39:25,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,177 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) [2021-12-19 17:39:25,178 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 [2021-12-19 17:39:25,180 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 [2021-12-19 17:39:25,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,214 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 [2021-12-19 17:39:25,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,216 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) [2021-12-19 17:39:25,217 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 [2021-12-19 17:39:25,219 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 [2021-12-19 17:39:25,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,258 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 [2021-12-19 17:39:25,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,260 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) [2021-12-19 17:39:25,261 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 [2021-12-19 17:39:25,262 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 [2021-12-19 17:39:25,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,303 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 [2021-12-19 17:39:25,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,316 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) [2021-12-19 17:39:25,318 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 [2021-12-19 17:39:25,319 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 [2021-12-19 17:39:25,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,376 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) [2021-12-19 17:39:25,376 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 [2021-12-19 17:39:25,377 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 [2021-12-19 17:39:25,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,414 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 [2021-12-19 17:39:25,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,415 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2021-12-19 17:39:25,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-19 17:39:25,417 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 [2021-12-19 17:39:25,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,458 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2021-12-19 17:39:25,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-19 17:39:25,459 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 [2021-12-19 17:39:25,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-19 17:39:25,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,483 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2021-12-19 17:39:25,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-19 17:39:25,489 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 [2021-12-19 17:39:25,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:39:25,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:39:25,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,535 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2021-12-19 17:39:25,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 17:39:25,537 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 [2021-12-19 17:39:25,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,577 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-12-19 17:39:25,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 17:39:25,580 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 [2021-12-19 17:39:25,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-19 17:39:25,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,615 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-12-19 17:39:25,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-19 17:39:25,618 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 [2021-12-19 17:39:25,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-19 17:39:25,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,658 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2021-12-19 17:39:25,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-19 17:39:25,660 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 [2021-12-19 17:39:25,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-19 17:39:25,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,689 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2021-12-19 17:39:25,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-19 17:39:25,691 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 [2021-12-19 17:39:25,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,725 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2021-12-19 17:39:25,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-19 17:39:25,728 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 [2021-12-19 17:39:25,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,759 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2021-12-19 17:39:25,764 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 [2021-12-19 17:39:25,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-19 17:39:25,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,801 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2021-12-19 17:39:25,812 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 [2021-12-19 17:39:25,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-19 17:39:25,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,846 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2021-12-19 17:39:25,851 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 [2021-12-19 17:39:25,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-19 17:39:25,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,878 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-12-19 17:39:25,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-19 17:39:25,880 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 [2021-12-19 17:39:25,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-19 17:39:25,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,911 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2021-12-19 17:39:25,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-19 17:39:25,913 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 [2021-12-19 17:39:25,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:25,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,941 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-12-19 17:39:25,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-19 17:39:25,943 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 [2021-12-19 17:39:25,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:25,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:25,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:25,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:25,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-19 17:39:25,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:25,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:25,981 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2021-12-19 17:39:25,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-19 17:39:25,983 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 [2021-12-19 17:39:25,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:25,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:25,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:25,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:25,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:39:25,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:39:26,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:26,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:26,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:26,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:26,030 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2021-12-19 17:39:26,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-19 17:39:26,039 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 [2021-12-19 17:39:26,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:26,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:26,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:26,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:26,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:26,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:26,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:26,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:26,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-19 17:39:26,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:26,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:26,080 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-12-19 17:39:26,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-19 17:39:26,083 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 [2021-12-19 17:39:26,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:26,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:26,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:26,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:26,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:26,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:26,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:26,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:26,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-19 17:39:26,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:26,116 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-12-19 17:39:26,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-19 17:39:26,119 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 [2021-12-19 17:39:26,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:26,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:26,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:26,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:26,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:26,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:26,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:26,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:26,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:26,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:26,156 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-12-19 17:39:26,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-19 17:39:26,159 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 [2021-12-19 17:39:26,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:26,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:39:26,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:26,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:39:26,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:26,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:39:26,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:39:26,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:39:26,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-19 17:39:26,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:26,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:26,187 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-12-19 17:39:26,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-19 17:39:26,189 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 [2021-12-19 17:39:26,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:39:26,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:39:26,195 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-19 17:39:26,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:39:26,201 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-19 17:39:26,201 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-19 17:39:26,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:39:26,266 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-19 17:39:26,267 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-19 17:39:26,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:39:26,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:26,269 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-12-19 17:39:26,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-19 17:39:26,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:39:26,355 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-19 17:39:26,355 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:39:26,355 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_ll_#in~n) = 1*new_ll_#in~n Supporting invariants [1*new_ll_#in~n >= 0] [2021-12-19 17:39:26,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:26,404 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-19 17:39:26,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:26,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 17:39:26,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:39:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:26,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-19 17:39:26,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:39:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:39:26,530 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-19 17:39:26,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:39:26,619 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 13 states. [2021-12-19 17:39:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-19 17:39:26,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:39:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-12-19 17:39:26,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-19 17:39:26,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:39:26,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-19 17:39:26,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:39:26,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-19 17:39:26,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:39:26,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2021-12-19 17:39:26,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:26,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2021-12-19 17:39:26,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-12-19 17:39:26,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-19 17:39:26,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2021-12-19 17:39:26,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:39:26,635 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2021-12-19 17:39:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2021-12-19 17:39:26,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-12-19 17:39:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 17:39:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2021-12-19 17:39:26,654 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-12-19 17:39:26,654 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-12-19 17:39:26,654 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 17:39:26,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2021-12-19 17:39:26,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:26,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:26,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:26,655 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:39:26,655 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 17:39:26,656 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 154#L574 assume !(main_~n~0#1 < 1); 143#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 162#new_llENTRY ~n := #in~n; 163#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 165#new_llFINAL assume true; 159#new_llEXIT >#57#return; 157#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 158#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 160#L566-3 [2021-12-19 17:39:26,656 INFO L793 eck$LassoCheckResult]: Loop: 160#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 161#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 160#L566-3 [2021-12-19 17:39:26,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:26,656 INFO L85 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2021-12-19 17:39:26,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:26,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636084220] [2021-12-19 17:39:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:26,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-19 17:39:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:39:26,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:39:26,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636084220] [2021-12-19 17:39:26,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636084220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:39:26,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:39:26,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 17:39:26,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821360857] [2021-12-19 17:39:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:39:26,729 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-19 17:39:26,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2021-12-19 17:39:26,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:26,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084003268] [2021-12-19 17:39:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:26,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:26,734 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:26,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:26,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:39:26,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 17:39:26,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-19 17:39:26,783 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 17:39:26,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:39:26,832 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-12-19 17:39:26,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 17:39:26,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2021-12-19 17:39:26,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:26,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2021-12-19 17:39:26,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-12-19 17:39:26,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-12-19 17:39:26,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2021-12-19 17:39:26,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:39:26,836 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-12-19 17:39:26,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2021-12-19 17:39:26,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-12-19 17:39:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-19 17:39:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-12-19 17:39:26,839 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-12-19 17:39:26,839 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-12-19 17:39:26,839 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 17:39:26,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2021-12-19 17:39:26,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:26,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:26,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:26,840 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:39:26,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:39:26,841 INFO L791 eck$LassoCheckResult]: Stem: 219#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 220#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 227#L574 assume !(main_~n~0#1 < 1); 217#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 234#new_llENTRY ~n := #in~n; 224#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 225#new_llFINAL assume true; 228#new_llEXIT >#57#return; 230#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 231#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 213#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 214#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 229#lengthENTRY [2021-12-19 17:39:26,841 INFO L793 eck$LassoCheckResult]: Loop: 229#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 222#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 223#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 229#lengthENTRY [2021-12-19 17:39:26,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash -250149368, now seen corresponding path program 1 times [2021-12-19 17:39:26,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:26,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498020052] [2021-12-19 17:39:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:26,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:26,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-19 17:39:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:39:26,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:39:26,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498020052] [2021-12-19 17:39:26,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498020052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:39:26,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:39:26,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-19 17:39:26,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871726473] [2021-12-19 17:39:26,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:39:26,881 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-19 17:39:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:26,881 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2021-12-19 17:39:26,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662851059] [2021-12-19 17:39:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:26,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:26,886 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:26,888 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:27,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:39:27,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 17:39:27,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-19 17:39:27,007 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 17:39:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:39:27,074 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2021-12-19 17:39:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-19 17:39:27,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2021-12-19 17:39:27,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:27,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2021-12-19 17:39:27,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-19 17:39:27,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-19 17:39:27,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2021-12-19 17:39:27,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:39:27,076 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-19 17:39:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2021-12-19 17:39:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-19 17:39:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-19 17:39:27,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-19 17:39:27,079 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-19 17:39:27,079 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-19 17:39:27,079 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 17:39:27,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-12-19 17:39:27,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:27,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:27,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:27,080 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:39:27,080 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 17:39:27,081 INFO L791 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 300#L574 assume !(main_~n~0#1 < 1); 287#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 307#new_llENTRY ~n := #in~n; 299#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 288#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 308#new_llENTRY ~n := #in~n; 297#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 298#new_llFINAL assume true; 301#new_llEXIT >#53#return; 286#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 289#new_llFINAL assume true; 309#new_llEXIT >#57#return; 303#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 304#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 305#L566-3 [2021-12-19 17:39:27,081 INFO L793 eck$LassoCheckResult]: Loop: 305#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 306#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 305#L566-3 [2021-12-19 17:39:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2021-12-19 17:39:27,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:27,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619211961] [2021-12-19 17:39:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:27,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:27,095 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:27,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2021-12-19 17:39:27,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:27,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829510278] [2021-12-19 17:39:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:27,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:27,114 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:27,117 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2021-12-19 17:39:27,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:27,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874565942] [2021-12-19 17:39:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:27,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:27,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:27,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-19 17:39:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-19 17:39:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 17:39:27,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:39:27,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874565942] [2021-12-19 17:39:27,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874565942] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 17:39:27,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138638823] [2021-12-19 17:39:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:27,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 17:39:27,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:39:27,316 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 17:39:27,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-12-19 17:39:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:27,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-19 17:39:27,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:39:27,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-19 17:39:27,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-19 17:39:27,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-19 17:39:27,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-19 17:39:27,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-19 17:39:27,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:39:27,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 17:39:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 17:39:27,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138638823] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 17:39:27,867 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 17:39:27,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 19 [2021-12-19 17:39:27,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116343757] [2021-12-19 17:39:27,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 17:39:27,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:39:27,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-19 17:39:27,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-12-19 17:39:27,905 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 13 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-19 17:39:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:39:28,086 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-12-19 17:39:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-19 17:39:28,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2021-12-19 17:39:28,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:28,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2021-12-19 17:39:28,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-19 17:39:28,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-19 17:39:28,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2021-12-19 17:39:28,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:39:28,088 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2021-12-19 17:39:28,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2021-12-19 17:39:28,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2021-12-19 17:39:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-19 17:39:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-12-19 17:39:28,092 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-19 17:39:28,092 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-19 17:39:28,092 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 17:39:28,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-12-19 17:39:28,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:28,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:28,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:28,093 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:39:28,093 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:39:28,093 INFO L791 eck$LassoCheckResult]: Stem: 497#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 498#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 505#L574 assume !(main_~n~0#1 < 1); 493#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 514#new_llENTRY ~n := #in~n; 504#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 492#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 515#new_llENTRY ~n := #in~n; 502#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 503#new_llFINAL assume true; 510#new_llEXIT >#53#return; 511#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 521#new_llFINAL assume true; 520#new_llEXIT >#57#return; 508#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 509#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 495#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 496#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 507#lengthENTRY [2021-12-19 17:39:28,093 INFO L793 eck$LassoCheckResult]: Loop: 507#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 500#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 501#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 507#lengthENTRY [2021-12-19 17:39:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2021-12-19 17:39:28,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:28,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774968288] [2021-12-19 17:39:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:28,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-19 17:39:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:28,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-19 17:39:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:39:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-19 17:39:28,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:39:28,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774968288] [2021-12-19 17:39:28,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774968288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:39:28,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:39:28,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-19 17:39:28,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784135875] [2021-12-19 17:39:28,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:39:28,170 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-19 17:39:28,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:28,171 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2021-12-19 17:39:28,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:28,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743801235] [2021-12-19 17:39:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:28,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,174 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:28,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:39:28,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-19 17:39:28,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-19 17:39:28,274 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-19 17:39:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:39:28,311 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2021-12-19 17:39:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-19 17:39:28,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2021-12-19 17:39:28,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:28,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2021-12-19 17:39:28,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-12-19 17:39:28,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-12-19 17:39:28,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2021-12-19 17:39:28,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:39:28,319 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-12-19 17:39:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2021-12-19 17:39:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2021-12-19 17:39:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-19 17:39:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-12-19 17:39:28,326 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-12-19 17:39:28,326 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-12-19 17:39:28,326 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-19 17:39:28,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2021-12-19 17:39:28,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-19 17:39:28,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:39:28,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:39:28,328 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:39:28,328 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:39:28,328 INFO L791 eck$LassoCheckResult]: Stem: 591#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 592#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 599#L574 assume !(main_~n~0#1 < 1); 589#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 608#new_llENTRY ~n := #in~n; 598#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 588#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 609#new_llENTRY ~n := #in~n; 596#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 597#new_llFINAL assume true; 601#new_llEXIT >#53#return; 607#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 615#new_llFINAL assume true; 611#new_llEXIT >#57#return; 602#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 603#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 613#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 606#L566-1 assume !(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset; 593#L566-4 call write~$Pointer$(append_~y#1.base, append_~y#1.offset, append_~x#1.base, 4 + append_~x#1.offset, 8);append_#res#1.base, append_#res#1.offset := append_~s~0#1.base, append_~s~0#1.offset; 585#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 586#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 600#lengthENTRY [2021-12-19 17:39:28,328 INFO L793 eck$LassoCheckResult]: Loop: 600#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 594#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 595#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 600#lengthENTRY [2021-12-19 17:39:28,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2021-12-19 17:39:28,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:28,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465628102] [2021-12-19 17:39:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:28,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:28,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 3 times [2021-12-19 17:39:28,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:28,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504522193] [2021-12-19 17:39:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:28,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,372 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,376 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:28,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:39:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2021-12-19 17:39:28,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:39:28,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864250423] [2021-12-19 17:39:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:39:28,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:39:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:39:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:39:28,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:39:30,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 05:39:30 BoogieIcfgContainer [2021-12-19 17:39:30,014 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 17:39:30,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 17:39:30,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 17:39:30,015 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 17:39:30,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:39:23" (3/4) ... [2021-12-19 17:39:30,017 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 17:39:30,046 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 17:39:30,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 17:39:30,046 INFO L158 Benchmark]: Toolchain (without parser) took 6988.26ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 92.5MB in the beginning and 48.5MB in the end (delta: 44.0MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2021-12-19 17:39:30,047 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:39:30,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.45ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 95.5MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:39:30,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.09ms. Allocated memory is still 125.8MB. Free memory was 95.0MB in the beginning and 93.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:39:30,047 INFO L158 Benchmark]: Boogie Preprocessor took 27.20ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 92.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:39:30,047 INFO L158 Benchmark]: RCFGBuilder took 304.22ms. Allocated memory is still 125.8MB. Free memory was 92.0MB in the beginning and 80.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-19 17:39:30,047 INFO L158 Benchmark]: BuchiAutomizer took 6276.58ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 80.4MB in the beginning and 50.5MB in the end (delta: 29.9MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2021-12-19 17:39:30,048 INFO L158 Benchmark]: Witness Printer took 30.79ms. Allocated memory is still 151.0MB. Free memory was 49.4MB in the beginning and 48.5MB in the end (delta: 939.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:39:30,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.45ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 95.5MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.09ms. Allocated memory is still 125.8MB. Free memory was 95.0MB in the beginning and 93.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.20ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 92.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.22ms. Allocated memory is still 125.8MB. Free memory was 92.0MB in the beginning and 80.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 6276.58ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 80.4MB in the beginning and 50.5MB in the end (delta: 29.9MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. * Witness Printer took 30.79ms. Allocated memory is still 151.0MB. Free memory was 49.4MB in the beginning and 48.5MB in the end (delta: 939.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 20 locations. The remainder module has 31 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 5.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 4. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 338 IncrementalHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 81 mSDtfsCounter, 338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax100 hnf100 lsp95 ukn30 mio100 lsp41 div100 bol100 ite100 ukn100 eq217 hnf86 smp100 dnf118 smp100 tf100 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 168ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=0, NULL=0, y=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7ebfa81f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b40a808=0, NULL=1, xs=0, y=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ade601f=0, \result=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25853a62=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1846c4d1=0, n=0, x=0, s=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ade601f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7ebfa81f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c38acef=0, s=0, x=0, \result=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7ece0f33=0, y=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1846c4d1=0, xs=-1, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7ece0f33=0, NULL=0, y=0, xs=0, xs=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31b3d08f=0, y_length=0, \result=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b40a808=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 555]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) [L577] CALL, EXPR new_ll(n) [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n [L552] CALL, EXPR new_ll(n-1) [L548] COND TRUE n == 0 [L549] return ((void *)0); [L552] RET, EXPR new_ll(n-1) [L552] head->next = new_ll(n-1) [L553] return head; [L577] RET, EXPR new_ll(n) [L577] node_t* x = new_ll(n); [L578] CALL, EXPR append(x, x) [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; [L566] EXPR x->next [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; [L578] RET, EXPR append(x, x) [L578] node_t* y = append(x, x); [L579] CALL length(y) Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 17:39:30,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-12-19 17:39:30,311 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)