./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/cll_by_lseg_traverse-alloca.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 65da722a2ea59f5974c3b0082ca57aa0ffbedb9a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:26:50,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:26:50,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:26:50,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:26:50,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:26:50,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:26:50,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:26:50,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:26:50,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:26:50,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:26:50,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:26:50,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:26:50,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:26:50,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:26:50,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:26:50,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:26:50,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:26:50,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:26:50,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:26:50,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:26:50,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:26:50,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:26:50,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:26:50,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:26:50,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:26:50,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:26:50,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:26:50,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:26:50,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:26:50,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:26:50,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:26:50,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:26:50,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:26:50,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:26:50,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:26:50,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:26:50,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:26:50,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:26:50,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:26:50,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:26:50,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:26:50,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:26:50,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:26:50,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:26:50,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:26:50,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:26:50,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:26:50,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:26:50,433 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:26:50,433 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:26:50,433 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:26:50,433 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:26:50,433 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:26:50,434 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:26:50,434 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:26:50,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:26:50,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:26:50,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:26:50,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:26:50,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:26:50,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:26:50,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:26:50,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:26:50,435 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:26:50,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:26:50,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:26:50,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:26:50,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:26:50,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:26:50,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:26:50,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:26:50,437 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:26:50,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65da722a2ea59f5974c3b0082ca57aa0ffbedb9a [2021-08-27 14:26:50,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:26:50,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:26:50,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:26:50,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:26:50,685 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:26:50,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i [2021-08-27 14:26:50,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e535abb/b62127d41b9a4a70a9b8eb21ea5f5798/FLAGeb407566c [2021-08-27 14:26:51,141 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:26:51,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i [2021-08-27 14:26:51,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e535abb/b62127d41b9a4a70a9b8eb21ea5f5798/FLAGeb407566c [2021-08-27 14:26:51,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16e535abb/b62127d41b9a4a70a9b8eb21ea5f5798 [2021-08-27 14:26:51,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:26:51,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:26:51,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:26:51,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:26:51,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:26:51,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d74b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51, skipping insertion in model container [2021-08-27 14:26:51,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:26:51,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:26:51,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:26:51,474 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:26:51,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:26:51,532 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:26:51,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51 WrapperNode [2021-08-27 14:26:51,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:26:51,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:26:51,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:26:51,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:26:51,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:26:51,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:26:51,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:26:51,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:26:51,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:26:51,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:26:51,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:26:51,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:26:51,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (1/1) ... [2021-08-27 14:26:51,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:51,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:51,637 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) [2021-08-27 14:26:51,668 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 [2021-08-27 14:26:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:26:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 14:26:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 14:26:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 14:26:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure new_lseg [2021-08-27 14:26:51,690 INFO L138 BoogieDeclarations]: Found implementation of procedure new_lseg [2021-08-27 14:26:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:26:51,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:26:51,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:26:51,923 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-27 14:26:51,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:26:51 BoogieIcfgContainer [2021-08-27 14:26:51,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:26:51,925 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:26:51,925 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:26:51,927 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:26:51,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:26:51,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:26:51" (1/3) ... [2021-08-27 14:26:51,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13cf8921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:26:51, skipping insertion in model container [2021-08-27 14:26:51,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:26:51,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:26:51" (2/3) ... [2021-08-27 14:26:51,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13cf8921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:26:51, skipping insertion in model container [2021-08-27 14:26:51,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:26:51,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:26:51" (3/3) ... [2021-08-27 14:26:51,929 INFO L389 chiAutomizerObserver]: Analyzing ICFG cll_by_lseg_traverse-alloca.i [2021-08-27 14:26:51,959 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:26:51,959 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:26:51,959 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:26:51,959 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:26:51,959 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:26:51,959 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:26:51,959 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:26:51,959 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:26:51,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:26:51,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:26:51,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:26:51,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:26:51,990 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 14:26:51,990 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:26:51,990 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:26:51,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:26:51,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-08-27 14:26:51,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:26:51,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:26:51,993 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 14:26:51,993 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:26:51,998 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~n~0, main_~x~2.base, main_~x~2.offset;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 8#L572true assume !(main_~n~0 < 1);new_cll_#in~n := main_~n~0;havoc new_cll_#res.base, new_cll_#res.offset;havoc new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset, new_cll_#t~ret5.base, new_cll_#t~ret5.offset, new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset;new_cll_~n := new_cll_#in~n;call new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset := #Ultimate.allocOnHeap(12);new_cll_~x~1.base, new_cll_~x~1.offset := new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset;havoc new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset;call write~int(new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset, 4); 13#L559true call new_cll_#t~ret5.base, new_cll_#t~ret5.offset := new_lseg(new_cll_~x~1.base, new_cll_~x~1.offset, new_cll_~n - 1);< 15#new_lsegENTRYtrue [2021-08-27 14:26:51,998 INFO L793 eck$LassoCheckResult]: Loop: 15#new_lsegENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;~n := #in~n; 4#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~x~0.base, ~x~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~x~0.base, ~x~0.offset, 4); 6#L552true call #t~ret3.base, #t~ret3.offset := new_lseg(~p.base, ~p.offset, ~n - 1);< 15#new_lsegENTRYtrue [2021-08-27 14:26:52,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:52,006 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-08-27 14:26:52,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:26:52,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191145138] [2021-08-27 14:26:52,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:26:52,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:26:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:52,081 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:26:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:52,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:26:52,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:52,110 INFO L82 PathProgramCache]: Analyzing trace with hash 57729, now seen corresponding path program 1 times [2021-08-27 14:26:52,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:26:52,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057301714] [2021-08-27 14:26:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:26:52,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:26:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:52,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:26:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:52,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:26:52,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:52,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1807633698, now seen corresponding path program 1 times [2021-08-27 14:26:52,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:26:52,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496267872] [2021-08-27 14:26:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:26:52,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:26:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:52,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:26:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:52,216 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:26:53,175 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:26:53,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:26:53,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:26:53,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:26:53,176 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:26:53,176 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,176 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:26:53,176 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:26:53,177 INFO L133 ssoRankerPreferences]: Filename of dumped script: cll_by_lseg_traverse-alloca.i_Iteration1_Lasso [2021-08-27 14:26:53,177 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:26:53,177 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:26:53,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:26:53,672 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:26:53,674 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:26:53,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,677 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) [2021-08-27 14:26:53,683 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 [2021-08-27 14:26:53,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,704 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 [2021-08-27 14:26:53,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,726 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 [2021-08-27 14:26:53,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,730 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) [2021-08-27 14:26:53,731 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 [2021-08-27 14:26:53,737 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 [2021-08-27 14:26:53,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,772 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 [2021-08-27 14:26:53,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,778 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) [2021-08-27 14:26:53,779 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 [2021-08-27 14:26:53,780 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 [2021-08-27 14:26:53,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,823 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 [2021-08-27 14:26:53,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,824 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) [2021-08-27 14:26:53,825 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 [2021-08-27 14:26:53,826 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 [2021-08-27 14:26:53,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,875 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 [2021-08-27 14:26:53,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,877 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) [2021-08-27 14:26:53,885 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 [2021-08-27 14:26:53,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,894 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 [2021-08-27 14:26:53,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,916 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 [2021-08-27 14:26:53,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,918 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) [2021-08-27 14:26:53,919 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 [2021-08-27 14:26:53,921 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 [2021-08-27 14:26:53,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,950 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 [2021-08-27 14:26:53,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,951 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) [2021-08-27 14:26:53,960 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 [2021-08-27 14:26:53,961 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 [2021-08-27 14:26:53,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:53,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:53,989 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 [2021-08-27 14:26:53,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:53,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:53,990 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) [2021-08-27 14:26:53,991 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 [2021-08-27 14:26:53,993 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 [2021-08-27 14:26:53,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:53,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:53,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:53,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:53,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:53,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:53,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:54,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,021 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 [2021-08-27 14:26:54,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,022 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) [2021-08-27 14:26:54,023 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 [2021-08-27 14:26:54,026 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 [2021-08-27 14:26:54,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:54,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:54,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:54,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:54,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,053 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 [2021-08-27 14:26:54,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,054 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) [2021-08-27 14:26:54,057 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 [2021-08-27 14:26:54,058 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 [2021-08-27 14:26:54,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:54,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:54,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:54,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:54,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,084 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 [2021-08-27 14:26:54,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,085 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) [2021-08-27 14:26:54,086 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 [2021-08-27 14:26:54,087 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 [2021-08-27 14:26:54,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:26:54,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:54,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:26:54,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:26:54,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 14:26:54,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,114 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) [2021-08-27 14:26:54,115 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 [2021-08-27 14:26:54,116 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 [2021-08-27 14:26:54,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:54,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:26:54,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:26:54,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,171 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 [2021-08-27 14:26:54,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,177 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) [2021-08-27 14:26:54,178 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 [2021-08-27 14:26:54,180 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 [2021-08-27 14:26:54,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:54,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:26:54,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:26:54,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,228 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 [2021-08-27 14:26:54,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,229 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) [2021-08-27 14:26:54,232 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 [2021-08-27 14:26:54,233 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 [2021-08-27 14:26:54,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:26:54,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:26:54,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:26:54,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 14:26:54,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,276 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) [2021-08-27 14:26:54,277 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 [2021-08-27 14:26:54,279 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 [2021-08-27 14:26:54,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,285 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-27 14:26:54,285 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 14:26:54,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,296 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-08-27 14:26:54,296 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 14:26:54,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:26:54,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 14:26:54,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,341 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) [2021-08-27 14:26:54,342 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 [2021-08-27 14:26:54,343 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 [2021-08-27 14:26:54,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:26:54,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:26:54,350 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 14:26:54,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:26:54,364 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-08-27 14:26:54,364 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 14:26:54,388 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:26:54,435 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-08-27 14:26:54,435 INFO L444 ModelExtractionUtils]: 11 out of 21 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-08-27 14:26:54,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:26:54,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:26:54,457 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) [2021-08-27 14:26:54,470 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 [2021-08-27 14:26:54,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:26:54,499 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-08-27 14:26:54,499 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:26:54,499 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_lseg_#in~n) = 1*new_lseg_#in~n Supporting invariants [1*new_lseg_#in~n >= 0] [2021-08-27 14:26:54,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 14:26:54,523 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-08-27 14:26:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:26:54,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 14:26:54,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:26:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:26:54,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:26:54,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:26:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:26:54,669 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 [2021-08-27 14:26:54,670 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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) [2021-08-27 14:26:54,756 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). 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 35 states and 41 transitions. Complement of second has 13 states. [2021-08-27 14:26:54,769 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 [2021-08-27 14:26:54,773 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) [2021-08-27 14:26:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-08-27 14:26:54,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2021-08-27 14:26:54,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:26:54,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2021-08-27 14:26:54,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:26:54,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2021-08-27 14:26:54,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:26:54,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2021-08-27 14:26:54,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:26:54,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 22 states and 27 transitions. [2021-08-27 14:26:54,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-08-27 14:26:54,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-27 14:26:54,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2021-08-27 14:26:54,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:26:54,782 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-08-27 14:26:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2021-08-27 14:26:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-08-27 14:26:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 14:26:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-08-27 14:26:54,823 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-08-27 14:26:54,823 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-08-27 14:26:54,823 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:26:54,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2021-08-27 14:26:54,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:26:54,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:26:54,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:26:54,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:26:54,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:26:54,825 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 130#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~n~0, main_~x~2.base, main_~x~2.offset;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 134#L572 assume !(main_~n~0 < 1);new_cll_#in~n := main_~n~0;havoc new_cll_#res.base, new_cll_#res.offset;havoc new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset, new_cll_#t~ret5.base, new_cll_#t~ret5.offset, new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset;new_cll_~n := new_cll_#in~n;call new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset := #Ultimate.allocOnHeap(12);new_cll_~x~1.base, new_cll_~x~1.offset := new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset;havoc new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset;call write~int(new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset, 4); 128#L559 call new_cll_#t~ret5.base, new_cll_#t~ret5.offset := new_lseg(new_cll_~x~1.base, new_cll_~x~1.offset, new_cll_~n - 1);< 138#new_lsegENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~n := #in~n; 139#L548 assume 0 == ~n;#res.base, #res.offset := ~p.base, ~p.offset; 142#new_lsegFINAL assume true; 136#new_lsegEXIT >#37#return; 135#L559-1 call write~$Pointer$(new_cll_#t~ret5.base, new_cll_#t~ret5.offset, new_cll_~x~1.base, 4 + new_cll_~x~1.offset, 8);havoc new_cll_#t~ret5.base, new_cll_#t~ret5.offset;new_cll_#res.base, new_cll_#res.offset := new_cll_~x~1.base, new_cll_~x~1.offset; 132#L560 main_#t~ret8.base, main_#t~ret8.offset := new_cll_#res.base, new_cll_#res.offset;main_~x~2.base, main_~x~2.offset := main_#t~ret8.base, main_#t~ret8.offset;havoc main_#t~ret8.base, main_#t~ret8.offset;traverse_#in~head.base, traverse_#in~head.offset := main_~x~2.base, main_~x~2.offset;havoc traverse_#t~mem6.base, traverse_#t~mem6.offset, traverse_~head.base, traverse_~head.offset, traverse_~curr~0.base, traverse_~curr~0.offset;traverse_~head.base, traverse_~head.offset := traverse_#in~head.base, traverse_#in~head.offset;traverse_~curr~0.base, traverse_~curr~0.offset := traverse_~head.base, traverse_~head.offset; 133#L565-2 [2021-08-27 14:26:54,825 INFO L793 eck$LassoCheckResult]: Loop: 133#L565-2 assume !!(traverse_~curr~0.base != 0 || traverse_~curr~0.offset != 0);call traverse_#t~mem6.base, traverse_#t~mem6.offset := read~$Pointer$(traverse_~curr~0.base, 4 + traverse_~curr~0.offset, 8);traverse_~curr~0.base, traverse_~curr~0.offset := traverse_#t~mem6.base, traverse_#t~mem6.offset;havoc traverse_#t~mem6.base, traverse_#t~mem6.offset; 133#L565-2 [2021-08-27 14:26:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash 914562823, now seen corresponding path program 1 times [2021-08-27 14:26:54,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:26:54,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233120381] [2021-08-27 14:26:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:26:54,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:26:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:54,835 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:26:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:54,847 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:26:54,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:54,848 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-08-27 14:26:54,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:26:54,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448706148] [2021-08-27 14:26:54,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:26:54,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:26:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:54,854 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:26:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:54,857 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:26:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:26:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1713323539, now seen corresponding path program 1 times [2021-08-27 14:26:54,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:26:54,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508638565] [2021-08-27 14:26:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:26:54,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:26:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:54,885 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:26:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:26:54,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:26:54,943 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 [2021-08-27 14:26:55,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:26:55 BoogieIcfgContainer [2021-08-27 14:26:55,763 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:26:55,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:26:55,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:26:55,764 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:26:55,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:26:51" (3/4) ... [2021-08-27 14:26:55,766 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 14:26:55,822 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 14:26:55,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:26:55,823 INFO L168 Benchmark]: Toolchain (without parser) took 4657.83 ms. Allocated memory was 56.6 MB in the beginning and 134.2 MB in the end (delta: 77.6 MB). Free memory was 34.5 MB in the beginning and 80.0 MB in the end (delta: -45.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:26:55,823 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:26:55,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.00 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 19.0 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:26:55,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.37 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 32.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:26:55,824 INFO L168 Benchmark]: Boogie Preprocessor took 34.93 ms. Allocated memory is still 56.6 MB. Free memory was 32.5 MB in the beginning and 31.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:26:55,825 INFO L168 Benchmark]: RCFGBuilder took 309.71 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 31.0 MB in the beginning and 46.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-08-27 14:26:55,830 INFO L168 Benchmark]: BuchiAutomizer took 3838.24 ms. Allocated memory was 75.5 MB in the beginning and 134.2 MB in the end (delta: 58.7 MB). Free memory was 46.9 MB in the beginning and 82.1 MB in the end (delta: -35.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:26:55,831 INFO L168 Benchmark]: Witness Printer took 58.62 ms. Allocated memory is still 134.2 MB. Free memory was 82.1 MB in the beginning and 80.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:26:55,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.00 ms. Allocated memory is still 56.6 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 19.0 kB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.37 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 32.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.93 ms. Allocated memory is still 56.6 MB. Free memory was 32.5 MB in the beginning and 31.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 309.71 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 31.0 MB in the beginning and 46.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3838.24 ms. Allocated memory was 75.5 MB in the beginning and 134.2 MB in the end (delta: 58.7 MB). Free memory was 46.9 MB in the beginning and 82.1 MB in the end (delta: -35.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. * Witness Printer took 58.62 ms. Allocated memory is still 134.2 MB. Free memory was 82.1 MB in the beginning and 80.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 22.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 11 SDslu, 7 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital200 mio100 ax100 hnf100 lsp93 ukn46 mio100 lsp28 div100 bol100 ite100 ukn100 eq196 hnf91 smp100 dnf139 smp100 tf100 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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: 565]: 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 {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3fbf5158=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d8ee364=0, curr=-1, \result=0, x=0, NULL=1, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f5e1b9e=0, x=-1, \old(n)=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c42c569=0, x=-1, head=0, head=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3fbf5158=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d8de6af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c42c569=0, n=1, head=0, head=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d8de6af=0, NULL=0, n=1, \result=-1, curr=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d8ee364=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 565]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L571] int n = __VERIFIER_nondet_int(); [L572] COND FALSE !(n < 1) [L557] node_t* x = malloc(sizeof(node_t)); [L558] x->val = n [L559] CALL, EXPR new_lseg(x,n-1) [L548] COND TRUE n==0 [L549] return p; [L559] RET, EXPR new_lseg(x,n-1) [L559] x->next = new_lseg(x,n-1) [L560] return x; [L575] node_t* x = new_cll(n); [L564] node_t* curr = head; Loop: [L565] COND TRUE curr != ((void *)0) [L566] EXPR curr->next [L566] curr = curr->next End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 14:26:55,868 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...